Home / 137,876.30-190,341.85-92,791.29

Finding the Fourth Proportional to 137,876.30, 190,341.85 and 92,791.29

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Solution

The fourth proportional to 137,876.30, 190,341.85 and 92,791.29 is: 128,100.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,876.30 : 190,341.85 = 92,791.29 : x
  2. Step 2: Convert to fraction form
    137,876.30/190,341.85 = 92,791.29/x
  3. Step 3: Cross multiply
    137,876.30x = 190,341.85 × 92,791.29
  4. Step 4: Simplify right side
    137,876.30x = 17,662,065,802.49
  5. Step 5: Solve for x
    x = 17,662,065,802.49/137,876.30
  6. Step 6: Final answer
    x = 128,100.82

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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.