Home / 138,081.63-206,872.14-63,264.36

Finding the Fourth Proportional to 138,081.63, 206,872.14 and 63,264.36

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Solution

The fourth proportional to 138,081.63, 206,872.14 and 63,264.36 is: 94,781.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,081.63 : 206,872.14 = 63,264.36 : x
  2. Step 2: Convert to fraction form
    138,081.63/206,872.14 = 63,264.36/x
  3. Step 3: Cross multiply
    138,081.63x = 206,872.14 × 63,264.36
  4. Step 4: Simplify right side
    138,081.63x = 13,087,633,538.93
  5. Step 5: Solve for x
    x = 13,087,633,538.93/138,081.63
  6. Step 6: Final answer
    x = 94,781.86

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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.