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Finding the Fourth Proportional to 138,734.10, 208,101.15 and 60,002.10

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Solution

The fourth proportional to 138,734.10, 208,101.15 and 60,002.10 is: 90,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,734.10 : 208,101.15 = 60,002.10 : x
  2. Step 2: Convert to fraction form
    138,734.10/208,101.15 = 60,002.10/x
  3. Step 3: Cross multiply
    138,734.10x = 208,101.15 × 60,002.10
  4. Step 4: Simplify right side
    138,734.10x = 12,486,506,012.42
  5. Step 5: Solve for x
    x = 12,486,506,012.42/138,734.10
  6. Step 6: Final answer
    x = 90,003.15

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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.