Home / 140,180.09-193,441.20-76,505.54

Finding the Fourth Proportional to 140,180.09, 193,441.20 and 76,505.54

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Solution

The fourth proportional to 140,180.09, 193,441.20 and 76,505.54 is: 105,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,180.09 : 193,441.20 = 76,505.54 : x
  2. Step 2: Convert to fraction form
    140,180.09/193,441.20 = 76,505.54/x
  3. Step 3: Cross multiply
    140,180.09x = 193,441.20 × 76,505.54
  4. Step 4: Simplify right side
    140,180.09x = 14,799,323,464.25
  5. Step 5: Solve for x
    x = 14,799,323,464.25/140,180.09
  6. Step 6: Final answer
    x = 105,573.65

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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.