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Finding the Fourth Proportional to 138,062.01, 207,093.56 and 42,000.17

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Solution

The fourth proportional to 138,062.01, 207,093.56 and 42,000.17 is: 63,000.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,062.01 : 207,093.56 = 42,000.17 : x
  2. Step 2: Convert to fraction form
    138,062.01/207,093.56 = 42,000.17/x
  3. Step 3: Cross multiply
    138,062.01x = 207,093.56 × 42,000.17
  4. Step 4: Simplify right side
    138,062.01x = 8,697,963,480.44
  5. Step 5: Solve for x
    x = 8,697,963,480.44/138,062.01
  6. Step 6: Final answer
    x = 63,000.41

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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.