Home / 141,559.54-195,352.86-81,133.78

Finding the Fourth Proportional to 141,559.54, 195,352.86 and 81,133.78

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Solution

The fourth proportional to 141,559.54, 195,352.86 and 81,133.78 is: 111,965.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,559.54 : 195,352.86 = 81,133.78 : x
  2. Step 2: Convert to fraction form
    141,559.54/195,352.86 = 81,133.78/x
  3. Step 3: Cross multiply
    141,559.54x = 195,352.86 × 81,133.78
  4. Step 4: Simplify right side
    141,559.54x = 15,849,715,965.61
  5. Step 5: Solve for x
    x = 15,849,715,965.61/141,559.54
  6. Step 6: Final answer
    x = 111,965.01

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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.