Home / 123,686.20-185,529.30-44,812.60

Finding the Fourth Proportional to 123,686.20, 185,529.30 and 44,812.60

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Solution

The fourth proportional to 123,686.20, 185,529.30 and 44,812.60 is: 67,218.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,686.20 : 185,529.30 = 44,812.60 : x
  2. Step 2: Convert to fraction form
    123,686.20/185,529.30 = 44,812.60/x
  3. Step 3: Cross multiply
    123,686.20x = 185,529.30 × 44,812.60
  4. Step 4: Simplify right side
    123,686.20x = 8,314,050,309.18
  5. Step 5: Solve for x
    x = 8,314,050,309.18/123,686.20
  6. Step 6: Final answer
    x = 67,218.90

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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.