Home / 124,789.87-172,210.01-68,201.24

Finding the Fourth Proportional to 124,789.87, 172,210.01 and 68,201.24

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Solution

The fourth proportional to 124,789.87, 172,210.01 and 68,201.24 is: 94,117.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,789.87 : 172,210.01 = 68,201.24 : x
  2. Step 2: Convert to fraction form
    124,789.87/172,210.01 = 68,201.24/x
  3. Step 3: Cross multiply
    124,789.87x = 172,210.01 × 68,201.24
  4. Step 4: Simplify right side
    124,789.87x = 11,744,936,823.44
  5. Step 5: Solve for x
    x = 11,744,936,823.44/124,789.87
  6. Step 6: Final answer
    x = 94,117.71

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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.