Home / 124,928.20-172,402.50-68,340.52

Finding the Fourth Proportional to 124,928.20, 172,402.50 and 68,340.52

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Solution

The fourth proportional to 124,928.20, 172,402.50 and 68,340.52 is: 94,310.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,928.20 : 172,402.50 = 68,340.52 : x
  2. Step 2: Convert to fraction form
    124,928.20/172,402.50 = 68,340.52/x
  3. Step 3: Cross multiply
    124,928.20x = 172,402.50 × 68,340.52
  4. Step 4: Simplify right side
    124,928.20x = 11,782,076,499.30
  5. Step 5: Solve for x
    x = 11,782,076,499.30/124,928.20
  6. Step 6: Final answer
    x = 94,310.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.