Home / 112,218.90-168,420.15-111,344.10

Finding the Fourth Proportional to 112,218.90, 168,420.15 and 111,344.10

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Solution

The fourth proportional to 112,218.90, 168,420.15 and 111,344.10 is: 167,107.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218.90 : 168,420.15 = 111,344.10 : x
  2. Step 2: Convert to fraction form
    112,218.90/168,420.15 = 111,344.10/x
  3. Step 3: Cross multiply
    112,218.90x = 168,420.15 × 111,344.10
  4. Step 4: Simplify right side
    112,218.90x = 18,752,590,023.62
  5. Step 5: Solve for x
    x = 18,752,590,023.62/112,218.90
  6. Step 6: Final answer
    x = 167,107.23

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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.