Home / 124,881.28-172,332.66-68,291.44

Finding the Fourth Proportional to 124,881.28, 172,332.66 and 68,291.44

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Solution

The fourth proportional to 124,881.28, 172,332.66 and 68,291.44 is: 94,240.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,881.28 : 172,332.66 = 68,291.44 : x
  2. Step 2: Convert to fraction form
    124,881.28/172,332.66 = 68,291.44/x
  3. Step 3: Cross multiply
    124,881.28x = 172,332.66 × 68,291.44
  4. Step 4: Simplify right side
    124,881.28x = 11,768,845,335.69
  5. Step 5: Solve for x
    x = 11,768,845,335.69/124,881.28
  6. Step 6: Final answer
    x = 94,240.27

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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.