Home / 123,821.80-185,732.70-30,327.55

Finding the Fourth Proportional to 123,821.80, 185,732.70 and 30,327.55

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Solution

The fourth proportional to 123,821.80, 185,732.70 and 30,327.55 is: 45,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,821.80 : 185,732.70 = 30,327.55 : x
  2. Step 2: Convert to fraction form
    123,821.80/185,732.70 = 30,327.55/x
  3. Step 3: Cross multiply
    123,821.80x = 185,732.70 × 30,327.55
  4. Step 4: Simplify right side
    123,821.80x = 5,632,817,745.89
  5. Step 5: Solve for x
    x = 5,632,817,745.89/123,821.80
  6. Step 6: Final answer
    x = 45,491.33

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1.5x scale

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.