Home / 112,267,385.80-168,401,078.70-75,987,680.20

Finding the Fourth Proportional to 112,267,385.80, 168,401,078.70 and 75,987,680.20

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Solution

The fourth proportional to 112,267,385.80, 168,401,078.70 and 75,987,680.20 is: 113,981,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,267,385.80 : 168,401,078.70 = 75,987,680.20 : x
  2. Step 2: Convert to fraction form
    112,267,385.80/168,401,078.70 = 75,987,680.20/x
  3. Step 3: Cross multiply
    112,267,385.80x = 168,401,078.70 × 75,987,680.20
  4. Step 4: Simplify right side
    112,267,385.80x = 12,796,407,313,590,632
  5. Step 5: Solve for x
    x = 12,796,407,313,590,632/112,267,385.80
  6. Step 6: Final answer
    x = 113,981,520.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.