Home / 124,789.24-172,209.60-68,200.64

Finding the Fourth Proportional to 124,789.24, 172,209.60 and 68,200.64

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Solution

The fourth proportional to 124,789.24, 172,209.60 and 68,200.64 is: 94,117.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,789.24 : 172,209.60 = 68,200.64 : x
  2. Step 2: Convert to fraction form
    124,789.24/172,209.60 = 68,200.64/x
  3. Step 3: Cross multiply
    124,789.24x = 172,209.60 × 68,200.64
  4. Step 4: Simplify right side
    124,789.24x = 11,744,804,934.14
  5. Step 5: Solve for x
    x = 11,744,804,934.14/124,789.24
  6. Step 6: Final answer
    x = 94,117.13

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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.