Home / 124,784.28-172,201.89-68,195.64

Finding the Fourth Proportional to 124,784.28, 172,201.89 and 68,195.64

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Solution

The fourth proportional to 124,784.28, 172,201.89 and 68,195.64 is: 94,109.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,784.28 : 172,201.89 = 68,195.64 : x
  2. Step 2: Convert to fraction form
    124,784.28/172,201.89 = 68,195.64/x
  3. Step 3: Cross multiply
    124,784.28x = 172,201.89 × 68,195.64
  4. Step 4: Simplify right side
    124,784.28x = 11,743,418,097.76
  5. Step 5: Solve for x
    x = 11,743,418,097.76/124,784.28
  6. Step 6: Final answer
    x = 94,109.76

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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.