Home / 111,126.80-153,355.47-60,139.54

Finding the Fourth Proportional to 111,126.80, 153,355.47 and 60,139.54

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Solution

The fourth proportional to 111,126.80, 153,355.47 and 60,139.54 is: 82,992.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,126.80 : 153,355.47 = 60,139.54 : x
  2. Step 2: Convert to fraction form
    111,126.80/153,355.47 = 60,139.54/x
  3. Step 3: Cross multiply
    111,126.80x = 153,355.47 × 60,139.54
  4. Step 4: Simplify right side
    111,126.80x = 9,222,727,493.70
  5. Step 5: Solve for x
    x = 9,222,727,493.70/111,126.80
  6. Step 6: Final answer
    x = 82,992.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.