Home / 138,370.25-190,876.33-92,508.86

Finding the Fourth Proportional to 138,370.25, 190,876.33 and 92,508.86

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Solution

The fourth proportional to 138,370.25, 190,876.33 and 92,508.86 is: 127,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,370.25 : 190,876.33 = 92,508.86 : x
  2. Step 2: Convert to fraction form
    138,370.25/190,876.33 = 92,508.86/x
  3. Step 3: Cross multiply
    138,370.25x = 190,876.33 × 92,508.86
  4. Step 4: Simplify right side
    138,370.25x = 17,657,752,282.11
  5. Step 5: Solve for x
    x = 17,657,752,282.11/138,370.25
  6. Step 6: Final answer
    x = 127,612.34

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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.