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Finding the Fourth Proportional to 139,261.32, 208,867.32 and 63,342.09

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Solution

The fourth proportional to 139,261.32, 208,867.32 and 63,342.09 is: 95,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,261.32 : 208,867.32 = 63,342.09 : x
  2. Step 2: Convert to fraction form
    139,261.32/208,867.32 = 63,342.09/x
  3. Step 3: Cross multiply
    139,261.32x = 208,867.32 × 63,342.09
  4. Step 4: Simplify right side
    139,261.32x = 13,230,092,581.50
  5. Step 5: Solve for x
    x = 13,230,092,581.50/139,261.32
  6. Step 6: Final answer
    x = 95,001.92

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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.