Home / 159,645.52-220,312.38-88,028.11

Finding the Fourth Proportional to 159,645.52, 220,312.38 and 88,028.11

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Solution

The fourth proportional to 159,645.52, 220,312.38 and 88,028.11 is: 121,479.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,645.52 : 220,312.38 = 88,028.11 : x
  2. Step 2: Convert to fraction form
    159,645.52/220,312.38 = 88,028.11/x
  3. Step 3: Cross multiply
    159,645.52x = 220,312.38 × 88,028.11
  4. Step 4: Simplify right side
    159,645.52x = 19,393,682,421.00
  5. Step 5: Solve for x
    x = 19,393,682,421.00/159,645.52
  6. Step 6: Final answer
    x = 121,479.65

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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.