Home / 138,861.08-208,291.64-48,882.61

Finding the Fourth Proportional to 138,861.08, 208,291.64 and 48,882.61

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Solution

The fourth proportional to 138,861.08, 208,291.64 and 48,882.61 is: 73,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,861.08 : 208,291.64 = 48,882.61 : x
  2. Step 2: Convert to fraction form
    138,861.08/208,291.64 = 48,882.61/x
  3. Step 3: Cross multiply
    138,861.08x = 208,291.64 × 48,882.61
  4. Step 4: Simplify right side
    138,861.08x = 10,181,837,848.69
  5. Step 5: Solve for x
    x = 10,181,837,848.69/138,861.08
  6. Step 6: Final answer
    x = 73,323.91

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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.