Home / 113,442.50-156,550.65-63,140.42

Finding the Fourth Proportional to 113,442.50, 156,550.65 and 63,140.42

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Solution

The fourth proportional to 113,442.50, 156,550.65 and 63,140.42 is: 87,133.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,442.50 : 156,550.65 = 63,140.42 : x
  2. Step 2: Convert to fraction form
    113,442.50/156,550.65 = 63,140.42/x
  3. Step 3: Cross multiply
    113,442.50x = 156,550.65 × 63,140.42
  4. Step 4: Simplify right side
    113,442.50x = 9,884,673,792.27
  5. Step 5: Solve for x
    x = 9,884,673,792.27/113,442.50
  6. Step 6: Final answer
    x = 87,133.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.