Home / 124,743.75-172,146.43-67,383.06

Finding the Fourth Proportional to 124,743.75, 172,146.43 and 67,383.06

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Solution

The fourth proportional to 124,743.75, 172,146.43 and 67,383.06 is: 92,988.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,743.75 : 172,146.43 = 67,383.06 : x
  2. Step 2: Convert to fraction form
    124,743.75/172,146.43 = 67,383.06/x
  3. Step 3: Cross multiply
    124,743.75x = 172,146.43 × 67,383.06
  4. Step 4: Simplify right side
    124,743.75x = 11,599,753,931.08
  5. Step 5: Solve for x
    x = 11,599,753,931.08/124,743.75
  6. Step 6: Final answer
    x = 92,988.66

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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.