Home / 109,931.38-151,705.31-62,183.70

Finding the Fourth Proportional to 109,931.38, 151,705.31 and 62,183.70

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Solution

The fourth proportional to 109,931.38, 151,705.31 and 62,183.70 is: 85,813.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,931.38 : 151,705.31 = 62,183.70 : x
  2. Step 2: Convert to fraction form
    109,931.38/151,705.31 = 62,183.70/x
  3. Step 3: Cross multiply
    109,931.38x = 151,705.31 × 62,183.70
  4. Step 4: Simplify right side
    109,931.38x = 9,433,597,174.53
  5. Step 5: Solve for x
    x = 9,433,597,174.53/109,931.38
  6. Step 6: Final answer
    x = 85,813.51

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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.