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Finding the Fourth Proportional to 102,817.92, 141,873.64 and 60,390.12

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Solution

The fourth proportional to 102,817.92, 141,873.64 and 60,390.12 is: 83,329.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,817.92 : 141,873.64 = 60,390.12 : x
  2. Step 2: Convert to fraction form
    102,817.92/141,873.64 = 60,390.12/x
  3. Step 3: Cross multiply
    102,817.92x = 141,873.64 × 60,390.12
  4. Step 4: Simplify right side
    102,817.92x = 8,567,766,144.44
  5. Step 5: Solve for x
    x = 8,567,766,144.44/102,817.92
  6. Step 6: Final answer
    x = 83,329.50

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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.