Home / 177,921.20-266,557.80-84,220.40

Finding the Fourth Proportional to 177,921.20, 266,557.80 and 84,220.40

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Solution

The fourth proportional to 177,921.20, 266,557.80 and 84,220.40 is: 126,177.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,921.20 : 266,557.80 = 84,220.40 : x
  2. Step 2: Convert to fraction form
    177,921.20/266,557.80 = 84,220.40/x
  3. Step 3: Cross multiply
    177,921.20x = 266,557.80 × 84,220.40
  4. Step 4: Simplify right side
    177,921.20x = 22,449,604,539.12
  5. Step 5: Solve for x
    x = 22,449,604,539.12/177,921.20
  6. Step 6: Final answer
    x = 126,177.23

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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.