Home / 97,428.80-146,143.20-91,523.90

Finding the Fourth Proportional to 97,428.80, 146,143.20 and 91,523.90

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Solution

The fourth proportional to 97,428.80, 146,143.20 and 91,523.90 is: 137,285.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.80 : 146,143.20 = 91,523.90 : x
  2. Step 2: Convert to fraction form
    97,428.80/146,143.20 = 91,523.90/x
  3. Step 3: Cross multiply
    97,428.80x = 146,143.20 × 91,523.90
  4. Step 4: Simplify right side
    97,428.80x = 13,375,595,622.48
  5. Step 5: Solve for x
    x = 13,375,595,622.48/97,428.80
  6. Step 6: Final answer
    x = 137,285.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.