Home / 159,904.24-220,658.34-87,292.65

Finding the Fourth Proportional to 159,904.24, 220,658.34 and 87,292.65

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Solution

The fourth proportional to 159,904.24, 220,658.34 and 87,292.65 is: 120,458.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,904.24 : 220,658.34 = 87,292.65 : x
  2. Step 2: Convert to fraction form
    159,904.24/220,658.34 = 87,292.65/x
  3. Step 3: Cross multiply
    159,904.24x = 220,658.34 × 87,292.65
  4. Step 4: Simplify right side
    159,904.24x = 19,261,850,139.91
  5. Step 5: Solve for x
    x = 19,261,850,139.91/159,904.24
  6. Step 6: Final answer
    x = 120,458.66

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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.