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Finding the Fourth Proportional to 155,957.10, 233,607.60 and 129,713.10

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Solution

The fourth proportional to 155,957.10, 233,607.60 and 129,713.10 is: 194,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,957.10 : 233,607.60 = 129,713.10 : x
  2. Step 2: Convert to fraction form
    155,957.10/233,607.60 = 129,713.10/x
  3. Step 3: Cross multiply
    155,957.10x = 233,607.60 × 129,713.10
  4. Step 4: Simplify right side
    155,957.10x = 30,301,965,979.56
  5. Step 5: Solve for x
    x = 30,301,965,979.56/155,957.10
  6. Step 6: Final answer
    x = 194,296.80

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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.