Home / 159,725.22-220,412.85-88,103.40

Finding the Fourth Proportional to 159,725.22, 220,412.85 and 88,103.40

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Solution

The fourth proportional to 159,725.22, 220,412.85 and 88,103.40 is: 121,578.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,725.22 : 220,412.85 = 88,103.40 : x
  2. Step 2: Convert to fraction form
    159,725.22/220,412.85 = 88,103.40/x
  3. Step 3: Cross multiply
    159,725.22x = 220,412.85 × 88,103.40
  4. Step 4: Simplify right side
    159,725.22x = 19,419,121,488.69
  5. Step 5: Solve for x
    x = 19,419,121,488.69/159,725.22
  6. Step 6: Final answer
    x = 121,578.30

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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.