Home / 138,922.44-208,637.88-127,211.04

Finding the Fourth Proportional to 138,922.44, 208,637.88 and 127,211.04

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Solution

The fourth proportional to 138,922.44, 208,637.88 and 127,211.04 is: 191,049.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,922.44 : 208,637.88 = 127,211.04 : x
  2. Step 2: Convert to fraction form
    138,922.44/208,637.88 = 127,211.04/x
  3. Step 3: Cross multiply
    138,922.44x = 208,637.88 × 127,211.04
  4. Step 4: Simplify right side
    138,922.44x = 26,541,041,698.20
  5. Step 5: Solve for x
    x = 26,541,041,698.20/138,922.44
  6. Step 6: Final answer
    x = 191,049.35

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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.