Home / 112,180.80-168,044.40-69,931.20

Finding the Fourth Proportional to 112,180.80, 168,044.40 and 69,931.20

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Solution

The fourth proportional to 112,180.80, 168,044.40 and 69,931.20 is: 104,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,180.80 : 168,044.40 = 69,931.20 : x
  2. Step 2: Convert to fraction form
    112,180.80/168,044.40 = 69,931.20/x
  3. Step 3: Cross multiply
    112,180.80x = 168,044.40 × 69,931.20
  4. Step 4: Simplify right side
    112,180.80x = 11,751,546,545.28
  5. Step 5: Solve for x
    x = 11,751,546,545.28/112,180.80
  6. Step 6: Final answer
    x = 104,755.42

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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.