Home / 111,013.20-166,519.80-36,140.40

Finding the Fourth Proportional to 111,013.20, 166,519.80 and 36,140.40

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Solution

The fourth proportional to 111,013.20, 166,519.80 and 36,140.40 is: 54,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,013.20 : 166,519.80 = 36,140.40 : x
  2. Step 2: Convert to fraction form
    111,013.20/166,519.80 = 36,140.40/x
  3. Step 3: Cross multiply
    111,013.20x = 166,519.80 × 36,140.40
  4. Step 4: Simplify right side
    111,013.20x = 6,018,092,179.92
  5. Step 5: Solve for x
    x = 6,018,092,179.92/111,013.20
  6. Step 6: Final answer
    x = 54,210.60

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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.