Home / 431,962.60-648,068.25-132,487.12

Finding the Fourth Proportional to 431,962.60, 648,068.25 and 132,487.12

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Solution

The fourth proportional to 431,962.60, 648,068.25 and 132,487.12 is: 198,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,962.60 : 648,068.25 = 132,487.12 : x
  2. Step 2: Convert to fraction form
    431,962.60/648,068.25 = 132,487.12/x
  3. Step 3: Cross multiply
    431,962.60x = 648,068.25 × 132,487.12
  4. Step 4: Simplify right side
    431,962.60x = 85,860,693,888.94
  5. Step 5: Solve for x
    x = 85,860,693,888.94/431,962.60
  6. Step 6: Final answer
    x = 198,768.82

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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.