Home / 102,355.44-141,280.92-64,654.80

Finding the Fourth Proportional to 102,355.44, 141,280.92 and 64,654.80

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Solution

The fourth proportional to 102,355.44, 141,280.92 and 64,654.80 is: 89,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,355.44 : 141,280.92 = 64,654.80 : x
  2. Step 2: Convert to fraction form
    102,355.44/141,280.92 = 64,654.80/x
  3. Step 3: Cross multiply
    102,355.44x = 141,280.92 × 64,654.80
  4. Step 4: Simplify right side
    102,355.44x = 9,134,489,626.42
  5. Step 5: Solve for x
    x = 9,134,489,626.42/102,355.44
  6. Step 6: Final answer
    x = 89,242.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.