Home / 89,743.90-134,615.85-68,748.70

Finding the Fourth Proportional to 89,743.90, 134,615.85 and 68,748.70

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Solution

The fourth proportional to 89,743.90, 134,615.85 and 68,748.70 is: 103,123.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,743.90 : 134,615.85 = 68,748.70 : x
  2. Step 2: Convert to fraction form
    89,743.90/134,615.85 = 68,748.70/x
  3. Step 3: Cross multiply
    89,743.90x = 134,615.85 × 68,748.70
  4. Step 4: Simplify right side
    89,743.90x = 9,254,664,686.90
  5. Step 5: Solve for x
    x = 9,254,664,686.90/89,743.90
  6. Step 6: Final answer
    x = 103,123.05

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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.