Home / 83,830.85-125,746.28-74,499.65

Finding the Fourth Proportional to 83,830.85, 125,746.28 and 74,499.65

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Solution

The fourth proportional to 83,830.85, 125,746.28 and 74,499.65 is: 111,749.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.85 : 125,746.28 = 74,499.65 : x
  2. Step 2: Convert to fraction form
    83,830.85/125,746.28 = 74,499.65/x
  3. Step 3: Cross multiply
    83,830.85x = 125,746.28 × 74,499.65
  4. Step 4: Simplify right side
    83,830.85x = 9,368,053,476.30
  5. Step 5: Solve for x
    x = 9,368,053,476.30/83,830.85
  6. Step 6: Final answer
    x = 111,749.48

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Similar ratio
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1.5x scale

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.