Home / 127,779.39-176,335.82-76,792.91

Finding the Fourth Proportional to 127,779.39, 176,335.82 and 76,792.91

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Solution

The fourth proportional to 127,779.39, 176,335.82 and 76,792.91 is: 105,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,779.39 : 176,335.82 = 76,792.91 : x
  2. Step 2: Convert to fraction form
    127,779.39/176,335.82 = 76,792.91/x
  3. Step 3: Cross multiply
    127,779.39x = 176,335.82 × 76,792.91
  4. Step 4: Simplify right side
    127,779.39x = 13,541,340,769.26
  5. Step 5: Solve for x
    x = 13,541,340,769.26/127,779.39
  6. Step 6: Final answer
    x = 105,974.37

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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.