Home / 83,929.30-125,962.80-83,273.20

Finding the Fourth Proportional to 83,929.30, 125,962.80 and 83,273.20

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Solution

The fourth proportional to 83,929.30, 125,962.80 and 83,273.20 is: 124,978.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,929.30 : 125,962.80 = 83,273.20 : x
  2. Step 2: Convert to fraction form
    83,929.30/125,962.80 = 83,273.20/x
  3. Step 3: Cross multiply
    83,929.30x = 125,962.80 × 83,273.20
  4. Step 4: Simplify right side
    83,929.30x = 10,489,325,436.96
  5. Step 5: Solve for x
    x = 10,489,325,436.96/83,929.30
  6. Step 6: Final answer
    x = 124,978.11

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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.