Home / 140,015.17-193,217.97-76,351.60

Finding the Fourth Proportional to 140,015.17, 193,217.97 and 76,351.60

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Solution

The fourth proportional to 140,015.17, 193,217.97 and 76,351.60 is: 105,363.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,015.17 : 193,217.97 = 76,351.60 : x
  2. Step 2: Convert to fraction form
    140,015.17/193,217.97 = 76,351.60/x
  3. Step 3: Cross multiply
    140,015.17x = 193,217.97 × 76,351.60
  4. Step 4: Simplify right side
    140,015.17x = 14,752,501,158.25
  5. Step 5: Solve for x
    x = 14,752,501,158.25/140,015.17
  6. Step 6: Final answer
    x = 105,363.59

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1.5x scale

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.