Home / 138,447.20-207,529.86-63,515.72

Finding the Fourth Proportional to 138,447.20, 207,529.86 and 63,515.72

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Solution

The fourth proportional to 138,447.20, 207,529.86 and 63,515.72 is: 95,208.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,447.20 : 207,529.86 = 63,515.72 : x
  2. Step 2: Convert to fraction form
    138,447.20/207,529.86 = 63,515.72/x
  3. Step 3: Cross multiply
    138,447.20x = 207,529.86 × 63,515.72
  4. Step 4: Simplify right side
    138,447.20x = 13,181,408,479.40
  5. Step 5: Solve for x
    x = 13,181,408,479.40/138,447.20
  6. Step 6: Final answer
    x = 95,208.92

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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.