Home / 138,964.46-208,458.99-39,125.51

Finding the Fourth Proportional to 138,964.46, 208,458.99 and 39,125.51

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Solution

The fourth proportional to 138,964.46, 208,458.99 and 39,125.51 is: 58,691.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,964.46 : 208,458.99 = 39,125.51 : x
  2. Step 2: Convert to fraction form
    138,964.46/208,458.99 = 39,125.51/x
  3. Step 3: Cross multiply
    138,964.46x = 208,458.99 × 39,125.51
  4. Step 4: Simplify right side
    138,964.46x = 8,156,064,297.83
  5. Step 5: Solve for x
    x = 8,156,064,297.83/138,964.46
  6. Step 6: Final answer
    x = 58,691.73

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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.