Home / 140,241.79-193,535.67-76,578.22

Finding the Fourth Proportional to 140,241.79, 193,535.67 and 76,578.22

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Solution

The fourth proportional to 140,241.79, 193,535.67 and 76,578.22 is: 105,679.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,241.79 : 193,535.67 = 76,578.22 : x
  2. Step 2: Convert to fraction form
    140,241.79/193,535.67 = 76,578.22/x
  3. Step 3: Cross multiply
    140,241.79x = 193,535.67 × 76,578.22
  4. Step 4: Simplify right side
    140,241.79x = 14,820,617,115.11
  5. Step 5: Solve for x
    x = 14,820,617,115.11/140,241.79
  6. Step 6: Final answer
    x = 105,679.04

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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.