Home / 159,521.27-220,150.02-87,901.29

Finding the Fourth Proportional to 159,521.27, 220,150.02 and 87,901.29

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Solution

The fourth proportional to 159,521.27, 220,150.02 and 87,901.29 is: 121,309.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,521.27 : 220,150.02 = 87,901.29 : x
  2. Step 2: Convert to fraction form
    159,521.27/220,150.02 = 87,901.29/x
  3. Step 3: Cross multiply
    159,521.27x = 220,150.02 × 87,901.29
  4. Step 4: Simplify right side
    159,521.27x = 19,351,471,205.88
  5. Step 5: Solve for x
    x = 19,351,471,205.88/159,521.27
  6. Step 6: Final answer
    x = 121,309.66

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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.