Home / 83,291.60-124,937.40-74,106.20

Finding the Fourth Proportional to 83,291.60, 124,937.40 and 74,106.20

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Solution

The fourth proportional to 83,291.60, 124,937.40 and 74,106.20 is: 111,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,291.60 : 124,937.40 = 74,106.20 : x
  2. Step 2: Convert to fraction form
    83,291.60/124,937.40 = 74,106.20/x
  3. Step 3: Cross multiply
    83,291.60x = 124,937.40 × 74,106.20
  4. Step 4: Simplify right side
    83,291.60x = 9,258,635,951.88
  5. Step 5: Solve for x
    x = 9,258,635,951.88/83,291.60
  6. Step 6: Final answer
    x = 111,159.30

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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.