Home / 138,926.90-208,168.92-88,965.90

Finding the Fourth Proportional to 138,926.90, 208,168.92 and 88,965.90

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Solution

The fourth proportional to 138,926.90, 208,168.92 and 88,965.90 is: 133,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,926.90 : 208,168.92 = 88,965.90 : x
  2. Step 2: Convert to fraction form
    138,926.90/208,168.92 = 88,965.90/x
  3. Step 3: Cross multiply
    138,926.90x = 208,168.92 × 88,965.90
  4. Step 4: Simplify right side
    138,926.90x = 18,519,935,319.83
  5. Step 5: Solve for x
    x = 18,519,935,319.83/138,926.90
  6. Step 6: Final answer
    x = 133,307.05

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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.