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Finding the Fourth Proportional to 138,470.93, 207,623.35 and 63,497.15

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Solution

The fourth proportional to 138,470.93, 207,623.35 and 63,497.15 is: 95,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,470.93 : 207,623.35 = 63,497.15 : x
  2. Step 2: Convert to fraction form
    138,470.93/207,623.35 = 63,497.15/x
  3. Step 3: Cross multiply
    138,470.93x = 207,623.35 × 63,497.15
  4. Step 4: Simplify right side
    138,470.93x = 13,183,490,998.45
  5. Step 5: Solve for x
    x = 13,183,490,998.45/138,470.93
  6. Step 6: Final answer
    x = 95,207.64

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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.