Home / 139,226.13-192,127.19-75,562.65

Finding the Fourth Proportional to 139,226.13, 192,127.19 and 75,562.65

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Solution

The fourth proportional to 139,226.13, 192,127.19 and 75,562.65 is: 104,273.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,226.13 : 192,127.19 = 75,562.65 : x
  2. Step 2: Convert to fraction form
    139,226.13/192,127.19 = 75,562.65/x
  3. Step 3: Cross multiply
    139,226.13x = 192,127.19 × 75,562.65
  4. Step 4: Simplify right side
    139,226.13x = 14,517,639,235.64
  5. Step 5: Solve for x
    x = 14,517,639,235.64/139,226.13
  6. Step 6: Final answer
    x = 104,273.81

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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.