Home / 140,279.22-193,585.32-76,617.17

Finding the Fourth Proportional to 140,279.22, 193,585.32 and 76,617.17

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Solution

The fourth proportional to 140,279.22, 193,585.32 and 76,617.17 is: 105,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,279.22 : 193,585.32 = 76,617.17 : x
  2. Step 2: Convert to fraction form
    140,279.22/193,585.32 = 76,617.17/x
  3. Step 3: Cross multiply
    140,279.22x = 193,585.32 × 76,617.17
  4. Step 4: Simplify right side
    140,279.22x = 14,831,959,371.94
  5. Step 5: Solve for x
    x = 14,831,959,371.94/140,279.22
  6. Step 6: Final answer
    x = 105,731.69

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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.