Home / 123,986.40-185,965.20-35,253.60

Finding the Fourth Proportional to 123,986.40, 185,965.20 and 35,253.60

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Solution

The fourth proportional to 123,986.40, 185,965.20 and 35,253.60 is: 52,876.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,986.40 : 185,965.20 = 35,253.60 : x
  2. Step 2: Convert to fraction form
    123,986.40/185,965.20 = 35,253.60/x
  3. Step 3: Cross multiply
    123,986.40x = 185,965.20 × 35,253.60
  4. Step 4: Simplify right side
    123,986.40x = 6,555,942,774.72
  5. Step 5: Solve for x
    x = 6,555,942,774.72/123,986.40
  6. Step 6: Final answer
    x = 52,876.31

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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.