Home / 123,927.20-185,685.60-71,244.80

Finding the Fourth Proportional to 123,927.20, 185,685.60 and 71,244.80

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Solution

The fourth proportional to 123,927.20, 185,685.60 and 71,244.80 is: 106,749.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.20 : 185,685.60 = 71,244.80 : x
  2. Step 2: Convert to fraction form
    123,927.20/185,685.60 = 71,244.80/x
  3. Step 3: Cross multiply
    123,927.20x = 185,685.60 × 71,244.80
  4. Step 4: Simplify right side
    123,927.20x = 13,229,133,434.88
  5. Step 5: Solve for x
    x = 13,229,133,434.88/123,927.20
  6. Step 6: Final answer
    x = 106,749.23

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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.