Home / 97,520.40-146,338.20-71,158.80

Finding the Fourth Proportional to 97,520.40, 146,338.20 and 71,158.80

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Solution

The fourth proportional to 97,520.40, 146,338.20 and 71,158.80 is: 106,780.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,520.40 : 146,338.20 = 71,158.80 : x
  2. Step 2: Convert to fraction form
    97,520.40/146,338.20 = 71,158.80/x
  3. Step 3: Cross multiply
    97,520.40x = 146,338.20 × 71,158.80
  4. Step 4: Simplify right side
    97,520.40x = 10,413,250,706.16
  5. Step 5: Solve for x
    x = 10,413,250,706.16/97,520.40
  6. Step 6: Final answer
    x = 106,780.23

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1.5x scale

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.