Home / 123,723.20-185,584.80-61,515.20

Finding the Fourth Proportional to 123,723.20, 185,584.80 and 61,515.20

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Solution

The fourth proportional to 123,723.20, 185,584.80 and 61,515.20 is: 92,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.20 : 185,584.80 = 61,515.20 : x
  2. Step 2: Convert to fraction form
    123,723.20/185,584.80 = 61,515.20/x
  3. Step 3: Cross multiply
    123,723.20x = 185,584.80 × 61,515.20
  4. Step 4: Simplify right side
    123,723.20x = 11,416,286,088.96
  5. Step 5: Solve for x
    x = 11,416,286,088.96/123,723.20
  6. Step 6: Final answer
    x = 92,272.80

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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.