Home / 123,790.06-185,685.70-30,295.81

Finding the Fourth Proportional to 123,790.06, 185,685.70 and 30,295.81

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Solution

The fourth proportional to 123,790.06, 185,685.70 and 30,295.81 is: 45,443.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,790.06 : 185,685.70 = 30,295.81 : x
  2. Step 2: Convert to fraction form
    123,790.06/185,685.70 = 30,295.81/x
  3. Step 3: Cross multiply
    123,790.06x = 185,685.70 × 30,295.81
  4. Step 4: Simplify right side
    123,790.06x = 5,625,498,686.92
  5. Step 5: Solve for x
    x = 5,625,498,686.92/123,790.06
  6. Step 6: Final answer
    x = 45,443.86

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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.