Home / 138,849.06-208,106.70-63,865.92

Finding the Fourth Proportional to 138,849.06, 208,106.70 and 63,865.92

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Solution

The fourth proportional to 138,849.06, 208,106.70 and 63,865.92 is: 95,722.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,849.06 : 208,106.70 = 63,865.92 : x
  2. Step 2: Convert to fraction form
    138,849.06/208,106.70 = 63,865.92/x
  3. Step 3: Cross multiply
    138,849.06x = 208,106.70 × 63,865.92
  4. Step 4: Simplify right side
    138,849.06x = 13,290,925,853.66
  5. Step 5: Solve for x
    x = 13,290,925,853.66/138,849.06
  6. Step 6: Final answer
    x = 95,722.12

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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.