Home / 116,318.90-160,520.12-65,331.71

Finding the Fourth Proportional to 116,318.90, 160,520.12 and 65,331.71

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Solution

The fourth proportional to 116,318.90, 160,520.12 and 65,331.71 is: 90,157.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,318.90 : 160,520.12 = 65,331.71 : x
  2. Step 2: Convert to fraction form
    116,318.90/160,520.12 = 65,331.71/x
  3. Step 3: Cross multiply
    116,318.90x = 160,520.12 × 65,331.71
  4. Step 4: Simplify right side
    116,318.90x = 10,487,052,799.75
  5. Step 5: Solve for x
    x = 10,487,052,799.75/116,318.90
  6. Step 6: Final answer
    x = 90,157.78

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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.