Home / 124,928.16-172,402.56-68,340.48

Finding the Fourth Proportional to 124,928.16, 172,402.56 and 68,340.48

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Solution

The fourth proportional to 124,928.16, 172,402.56 and 68,340.48 is: 94,310.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,928.16 : 172,402.56 = 68,340.48 : x
  2. Step 2: Convert to fraction form
    124,928.16/172,402.56 = 68,340.48/x
  3. Step 3: Cross multiply
    124,928.16x = 172,402.56 × 68,340.48
  4. Step 4: Simplify right side
    124,928.16x = 11,782,073,703.63
  5. Step 5: Solve for x
    x = 11,782,073,703.63/124,928.16
  6. Step 6: Final answer
    x = 94,310.79

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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.