Home / 106,520.81-146,998.15-58,122.72

Finding the Fourth Proportional to 106,520.81, 146,998.15 and 58,122.72

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Solution

The fourth proportional to 106,520.81, 146,998.15 and 58,122.72 is: 80,209.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,520.81 : 146,998.15 = 58,122.72 : x
  2. Step 2: Convert to fraction form
    106,520.81/146,998.15 = 58,122.72/x
  3. Step 3: Cross multiply
    106,520.81x = 146,998.15 × 58,122.72
  4. Step 4: Simplify right side
    106,520.81x = 8,543,932,312.97
  5. Step 5: Solve for x
    x = 8,543,932,312.97/106,520.81
  6. Step 6: Final answer
    x = 80,209.04

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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.