Home / 124,928.63-172,404.27-68,340

Finding the Fourth Proportional to 124,928.63, 172,404.27 and 68,340

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Solution

The fourth proportional to 124,928.63, 172,404.27 and 68,340 is: 94,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,928.63 : 172,404.27 = 68,340 : x
  2. Step 2: Convert to fraction form
    124,928.63/172,404.27 = 68,340/x
  3. Step 3: Cross multiply
    124,928.63x = 172,404.27 × 68,340
  4. Step 4: Simplify right side
    124,928.63x = 11,782,107,811.80
  5. Step 5: Solve for x
    x = 11,782,107,811.80/124,928.63
  6. Step 6: Final answer
    x = 94,310.71

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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.