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Finding the Fourth Proportional to 102,550.96, 141,310.14 and 75,650.80

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Solution

The fourth proportional to 102,550.96, 141,310.14 and 75,650.80 is: 104,243.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,550.96 : 141,310.14 = 75,650.80 : x
  2. Step 2: Convert to fraction form
    102,550.96/141,310.14 = 75,650.80/x
  3. Step 3: Cross multiply
    102,550.96x = 141,310.14 × 75,650.80
  4. Step 4: Simplify right side
    102,550.96x = 10,690,225,139.11
  5. Step 5: Solve for x
    x = 10,690,225,139.11/102,550.96
  6. Step 6: Final answer
    x = 104,243.05

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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.