Home / 159,898-220,685.16-92,868.88

Finding the Fourth Proportional to 159,898, 220,685.16 and 92,868.88

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Solution

The fourth proportional to 159,898, 220,685.16 and 92,868.88 is: 128,174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,898 : 220,685.16 = 92,868.88 : x
  2. Step 2: Convert to fraction form
    159,898/220,685.16 = 92,868.88/x
  3. Step 3: Cross multiply
    159,898x = 220,685.16 × 92,868.88
  4. Step 4: Simplify right side
    159,898x = 20,494,783,641.82
  5. Step 5: Solve for x
    x = 20,494,783,641.82/159,898
  6. Step 6: Final answer
    x = 128,174.11

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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.