Home / 140,279.41-193,585.58-76,617.36

Finding the Fourth Proportional to 140,279.41, 193,585.58 and 76,617.36

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Solution

The fourth proportional to 140,279.41, 193,585.58 and 76,617.36 is: 105,731.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,279.41 : 193,585.58 = 76,617.36 : x
  2. Step 2: Convert to fraction form
    140,279.41/193,585.58 = 76,617.36/x
  3. Step 3: Cross multiply
    140,279.41x = 193,585.58 × 76,617.36
  4. Step 4: Simplify right side
    140,279.41x = 14,832,015,105.74
  5. Step 5: Solve for x
    x = 14,832,015,105.74/140,279.41
  6. Step 6: Final answer
    x = 105,731.95

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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.