Home / 156,665.10-234,997.65-72,425.10

Finding the Fourth Proportional to 156,665.10, 234,997.65 and 72,425.10

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Solution

The fourth proportional to 156,665.10, 234,997.65 and 72,425.10 is: 108,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,665.10 : 234,997.65 = 72,425.10 : x
  2. Step 2: Convert to fraction form
    156,665.10/234,997.65 = 72,425.10/x
  3. Step 3: Cross multiply
    156,665.10x = 234,997.65 × 72,425.10
  4. Step 4: Simplify right side
    156,665.10x = 17,019,728,301.02
  5. Step 5: Solve for x
    x = 17,019,728,301.02/156,665.10
  6. Step 6: Final answer
    x = 108,637.65

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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.