Home / 127,166.78-175,508.41-76,181.66

Finding the Fourth Proportional to 127,166.78, 175,508.41 and 76,181.66

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Solution

The fourth proportional to 127,166.78, 175,508.41 and 76,181.66 is: 105,141.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,166.78 : 175,508.41 = 76,181.66 : x
  2. Step 2: Convert to fraction form
    127,166.78/175,508.41 = 76,181.66/x
  3. Step 3: Cross multiply
    127,166.78x = 175,508.41 × 76,181.66
  4. Step 4: Simplify right side
    127,166.78x = 13,370,521,827.31
  5. Step 5: Solve for x
    x = 13,370,521,827.31/127,166.78
  6. Step 6: Final answer
    x = 105,141.62

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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.