Home / 177,640.30-266,330.85-72,405.10

Finding the Fourth Proportional to 177,640.30, 266,330.85 and 72,405.10

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Solution

The fourth proportional to 177,640.30, 266,330.85 and 72,405.10 is: 108,554.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,640.30 : 266,330.85 = 72,405.10 : x
  2. Step 2: Convert to fraction form
    177,640.30/266,330.85 = 72,405.10/x
  3. Step 3: Cross multiply
    177,640.30x = 266,330.85 × 72,405.10
  4. Step 4: Simplify right side
    177,640.30x = 19,283,711,827.34
  5. Step 5: Solve for x
    x = 19,283,711,827.34/177,640.30
  6. Step 6: Final answer
    x = 108,554.83

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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.