Home / 159,738.79-220,440.14-88,117.78

Finding the Fourth Proportional to 159,738.79, 220,440.14 and 88,117.78

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Solution

The fourth proportional to 159,738.79, 220,440.14 and 88,117.78 is: 121,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,738.79 : 220,440.14 = 88,117.78 : x
  2. Step 2: Convert to fraction form
    159,738.79/220,440.14 = 88,117.78/x
  3. Step 3: Cross multiply
    159,738.79x = 220,440.14 × 88,117.78
  4. Step 4: Simplify right side
    159,738.79x = 19,424,695,759.69
  5. Step 5: Solve for x
    x = 19,424,695,759.69/159,738.79
  6. Step 6: Final answer
    x = 121,602.87

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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.