Home / 124,904.52-172,372.36-68,315.89

Finding the Fourth Proportional to 124,904.52, 172,372.36 and 68,315.89

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Solution

The fourth proportional to 124,904.52, 172,372.36 and 68,315.89 is: 94,278.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,904.52 : 172,372.36 = 68,315.89 : x
  2. Step 2: Convert to fraction form
    124,904.52/172,372.36 = 68,315.89/x
  3. Step 3: Cross multiply
    124,904.52x = 172,372.36 × 68,315.89
  4. Step 4: Simplify right side
    124,904.52x = 11,775,770,843.22
  5. Step 5: Solve for x
    x = 11,775,770,843.22/124,904.52
  6. Step 6: Final answer
    x = 94,278.18

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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.