Home / 242,539.20-363,722.40-84,772.80

Finding the Fourth Proportional to 242,539.20, 363,722.40 and 84,772.80

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Solution

The fourth proportional to 242,539.20, 363,722.40 and 84,772.80 is: 127,129.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,539.20 : 363,722.40 = 84,772.80 : x
  2. Step 2: Convert to fraction form
    242,539.20/363,722.40 = 84,772.80/x
  3. Step 3: Cross multiply
    242,539.20x = 363,722.40 × 84,772.80
  4. Step 4: Simplify right side
    242,539.20x = 30,833,766,270.72
  5. Step 5: Solve for x
    x = 30,833,766,270.72/242,539.20
  6. Step 6: Final answer
    x = 127,129.00

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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.