Home / 138,861.14-208,012.86-63,876.60

Finding the Fourth Proportional to 138,861.14, 208,012.86 and 63,876.60

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Solution

The fourth proportional to 138,861.14, 208,012.86 and 63,876.60 is: 95,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,861.14 : 208,012.86 = 63,876.60 : x
  2. Step 2: Convert to fraction form
    138,861.14/208,012.86 = 63,876.60/x
  3. Step 3: Cross multiply
    138,861.14x = 208,012.86 × 63,876.60
  4. Step 4: Simplify right side
    138,861.14x = 13,287,154,253.08
  5. Step 5: Solve for x
    x = 13,287,154,253.08/138,861.14
  6. Step 6: Final answer
    x = 95,686.63

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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.