Home / 125,629.20-188,443.80-50,785.20

Finding the Fourth Proportional to 125,629.20, 188,443.80 and 50,785.20

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Solution

The fourth proportional to 125,629.20, 188,443.80 and 50,785.20 is: 76,177.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,629.20 : 188,443.80 = 50,785.20 : x
  2. Step 2: Convert to fraction form
    125,629.20/188,443.80 = 50,785.20/x
  3. Step 3: Cross multiply
    125,629.20x = 188,443.80 × 50,785.20
  4. Step 4: Simplify right side
    125,629.20x = 9,570,156,071.76
  5. Step 5: Solve for x
    x = 9,570,156,071.76/125,629.20
  6. Step 6: Final answer
    x = 76,177.80

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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.