Home / 123,829.29-170,886.42-70,112.88

Finding the Fourth Proportional to 123,829.29, 170,886.42 and 70,112.88

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Solution

The fourth proportional to 123,829.29, 170,886.42 and 70,112.88 is: 96,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,829.29 : 170,886.42 = 70,112.88 : x
  2. Step 2: Convert to fraction form
    123,829.29/170,886.42 = 70,112.88/x
  3. Step 3: Cross multiply
    123,829.29x = 170,886.42 × 70,112.88
  4. Step 4: Simplify right side
    123,829.29x = 11,981,339,059.09
  5. Step 5: Solve for x
    x = 11,981,339,059.09/123,829.29
  6. Step 6: Final answer
    x = 96,756.91

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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.