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Finding the Fourth Proportional to 111,013.70, 166,520.55 and 36,140.90

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Solution

The fourth proportional to 111,013.70, 166,520.55 and 36,140.90 is: 54,211.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,013.70 : 166,520.55 = 36,140.90 : x
  2. Step 2: Convert to fraction form
    111,013.70/166,520.55 = 36,140.90/x
  3. Step 3: Cross multiply
    111,013.70x = 166,520.55 × 36,140.90
  4. Step 4: Simplify right side
    111,013.70x = 6,018,202,545.50
  5. Step 5: Solve for x
    x = 6,018,202,545.50/111,013.70
  6. Step 6: Final answer
    x = 54,211.35

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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.