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Finding the Fourth Proportional to 177,128.80, 266,000.40 and 124,904.80

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Solution

The fourth proportional to 177,128.80, 266,000.40 and 124,904.80 is: 187,573.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,128.80 : 266,000.40 = 124,904.80 : x
  2. Step 2: Convert to fraction form
    177,128.80/266,000.40 = 124,904.80/x
  3. Step 3: Cross multiply
    177,128.80x = 266,000.40 × 124,904.80
  4. Step 4: Simplify right side
    177,128.80x = 33,224,726,761.92
  5. Step 5: Solve for x
    x = 33,224,726,761.92/177,128.80
  6. Step 6: Final answer
    x = 187,573.83

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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.