Home / 131,812.89-197,753.04-38,318.64

Finding the Fourth Proportional to 131,812.89, 197,753.04 and 38,318.64

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Solution

The fourth proportional to 131,812.89, 197,753.04 and 38,318.64 is: 57,487.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,812.89 : 197,753.04 = 38,318.64 : x
  2. Step 2: Convert to fraction form
    131,812.89/197,753.04 = 38,318.64/x
  3. Step 3: Cross multiply
    131,812.89x = 197,753.04 × 38,318.64
  4. Step 4: Simplify right side
    131,812.89x = 7,577,626,559.90
  5. Step 5: Solve for x
    x = 7,577,626,559.90/131,812.89
  6. Step 6: Final answer
    x = 57,487.75

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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.