Home / 141,382.20-195,102.50-77,719.54

Finding the Fourth Proportional to 141,382.20, 195,102.50 and 77,719.54

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Solution

The fourth proportional to 141,382.20, 195,102.50 and 77,719.54 is: 107,250.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,382.20 : 195,102.50 = 77,719.54 : x
  2. Step 2: Convert to fraction form
    141,382.20/195,102.50 = 77,719.54/x
  3. Step 3: Cross multiply
    141,382.20x = 195,102.50 × 77,719.54
  4. Step 4: Simplify right side
    141,382.20x = 15,163,276,552.85
  5. Step 5: Solve for x
    x = 15,163,276,552.85/141,382.20
  6. Step 6: Final answer
    x = 107,250.25

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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.