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Finding the Fourth Proportional to 138,396.88, 206,837.04 and 101,035.62

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Solution

The fourth proportional to 138,396.88, 206,837.04 and 101,035.62 is: 150,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,396.88 : 206,837.04 = 101,035.62 : x
  2. Step 2: Convert to fraction form
    138,396.88/206,837.04 = 101,035.62/x
  3. Step 3: Cross multiply
    138,396.88x = 206,837.04 × 101,035.62
  4. Step 4: Simplify right side
    138,396.88x = 20,897,908,575.36
  5. Step 5: Solve for x
    x = 20,897,908,575.36/138,396.88
  6. Step 6: Final answer
    x = 150,999.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.