Home / 159,053.40-219,493.92-87,433.86

Finding the Fourth Proportional to 159,053.40, 219,493.92 and 87,433.86

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Solution

The fourth proportional to 159,053.40, 219,493.92 and 87,433.86 is: 120,658.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,053.40 : 219,493.92 = 87,433.86 : x
  2. Step 2: Convert to fraction form
    159,053.40/219,493.92 = 87,433.86/x
  3. Step 3: Cross multiply
    159,053.40x = 219,493.92 × 87,433.86
  4. Step 4: Simplify right side
    159,053.40x = 19,191,200,672.13
  5. Step 5: Solve for x
    x = 19,191,200,672.13/159,053.40
  6. Step 6: Final answer
    x = 120,658.85

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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.