Home / 97,502.40-146,311.20-71,140.80

Finding the Fourth Proportional to 97,502.40, 146,311.20 and 71,140.80

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Solution

The fourth proportional to 97,502.40, 146,311.20 and 71,140.80 is: 106,753.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,502.40 : 146,311.20 = 71,140.80 : x
  2. Step 2: Convert to fraction form
    97,502.40/146,311.20 = 71,140.80/x
  3. Step 3: Cross multiply
    97,502.40x = 146,311.20 × 71,140.80
  4. Step 4: Simplify right side
    97,502.40x = 10,408,695,816.96
  5. Step 5: Solve for x
    x = 10,408,695,816.96/97,502.40
  6. Step 6: Final answer
    x = 106,753.23

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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.