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Finding the Fourth Proportional to 111,115.80, 166,689.90 and 36,223.20

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Solution

The fourth proportional to 111,115.80, 166,689.90 and 36,223.20 is: 54,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,115.80 : 166,689.90 = 36,223.20 : x
  2. Step 2: Convert to fraction form
    111,115.80/166,689.90 = 36,223.20/x
  3. Step 3: Cross multiply
    111,115.80x = 166,689.90 × 36,223.20
  4. Step 4: Simplify right side
    111,115.80x = 6,038,041,585.68
  5. Step 5: Solve for x
    x = 6,038,041,585.68/111,115.80
  6. Step 6: Final answer
    x = 54,340.08

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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.