Home / 140,318.76-193,629.72-76,643.04

Finding the Fourth Proportional to 140,318.76, 193,629.72 and 76,643.04

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Solution

The fourth proportional to 140,318.76, 193,629.72 and 76,643.04 is: 105,761.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,318.76 : 193,629.72 = 76,643.04 : x
  2. Step 2: Convert to fraction form
    140,318.76/193,629.72 = 76,643.04/x
  3. Step 3: Cross multiply
    140,318.76x = 193,629.72 × 76,643.04
  4. Step 4: Simplify right side
    140,318.76x = 14,840,370,375.15
  5. Step 5: Solve for x
    x = 14,840,370,375.15/140,318.76
  6. Step 6: Final answer
    x = 105,761.84

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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.