Home / 138,801.30-208,170.78-63,849.45

Finding the Fourth Proportional to 138,801.30, 208,170.78 and 63,849.45

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Solution

The fourth proportional to 138,801.30, 208,170.78 and 63,849.45 is: 95,759.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,801.30 : 208,170.78 = 63,849.45 : x
  2. Step 2: Convert to fraction form
    138,801.30/208,170.78 = 63,849.45/x
  3. Step 3: Cross multiply
    138,801.30x = 208,170.78 × 63,849.45
  4. Step 4: Simplify right side
    138,801.30x = 13,291,589,809.07
  5. Step 5: Solve for x
    x = 13,291,589,809.07/138,801.30
  6. Step 6: Final answer
    x = 95,759.84

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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.