Home / 140,212.31-193,496.30-76,550.55

Finding the Fourth Proportional to 140,212.31, 193,496.30 and 76,550.55

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Solution

The fourth proportional to 140,212.31, 193,496.30 and 76,550.55 is: 105,641.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,212.31 : 193,496.30 = 76,550.55 : x
  2. Step 2: Convert to fraction form
    140,212.31/193,496.30 = 76,550.55/x
  3. Step 3: Cross multiply
    140,212.31x = 193,496.30 × 76,550.55
  4. Step 4: Simplify right side
    140,212.31x = 14,812,247,805.21
  5. Step 5: Solve for x
    x = 14,812,247,805.21/140,212.31
  6. Step 6: Final answer
    x = 105,641.57

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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.