Home / 102,451.31-141,383.61-57,132.23

Finding the Fourth Proportional to 102,451.31, 141,383.61 and 57,132.23

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Solution

The fourth proportional to 102,451.31, 141,383.61 and 57,132.23 is: 78,842.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,451.31 : 141,383.61 = 57,132.23 : x
  2. Step 2: Convert to fraction form
    102,451.31/141,383.61 = 57,132.23/x
  3. Step 3: Cross multiply
    102,451.31x = 141,383.61 × 57,132.23
  4. Step 4: Simplify right side
    102,451.31x = 8,077,560,615.47
  5. Step 5: Solve for x
    x = 8,077,560,615.47/102,451.31
  6. Step 6: Final answer
    x = 78,842.92

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1.5x scale

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.