Home / 151,988.45-209,761.85-126,449.76

Finding the Fourth Proportional to 151,988.45, 209,761.85 and 126,449.76

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Solution

The fourth proportional to 151,988.45, 209,761.85 and 126,449.76 is: 174,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,988.45 : 209,761.85 = 126,449.76 : x
  2. Step 2: Convert to fraction form
    151,988.45/209,761.85 = 126,449.76/x
  3. Step 3: Cross multiply
    151,988.45x = 209,761.85 × 126,449.76
  4. Step 4: Simplify right side
    151,988.45x = 26,524,335,512.48
  5. Step 5: Solve for x
    x = 26,524,335,512.48/151,988.45
  6. Step 6: Final answer
    x = 174,515.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.