Home / 83,934.60-125,901.90-74,749.20

Finding the Fourth Proportional to 83,934.60, 125,901.90 and 74,749.20

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Solution

The fourth proportional to 83,934.60, 125,901.90 and 74,749.20 is: 112,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,934.60 : 125,901.90 = 74,749.20 : x
  2. Step 2: Convert to fraction form
    83,934.60/125,901.90 = 74,749.20/x
  3. Step 3: Cross multiply
    83,934.60x = 125,901.90 × 74,749.20
  4. Step 4: Simplify right side
    83,934.60x = 9,411,066,303.48
  5. Step 5: Solve for x
    x = 9,411,066,303.48/83,934.60
  6. Step 6: Final answer
    x = 112,123.80

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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.