Home / 141,791.64-195,665.40-78,119.16

Finding the Fourth Proportional to 141,791.64, 195,665.40 and 78,119.16

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Solution

The fourth proportional to 141,791.64, 195,665.40 and 78,119.16 is: 107,800.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,791.64 : 195,665.40 = 78,119.16 : x
  2. Step 2: Convert to fraction form
    141,791.64/195,665.40 = 78,119.16/x
  3. Step 3: Cross multiply
    141,791.64x = 195,665.40 × 78,119.16
  4. Step 4: Simplify right side
    141,791.64x = 15,285,216,689.06
  5. Step 5: Solve for x
    x = 15,285,216,689.06/141,791.64
  6. Step 6: Final answer
    x = 107,800.55

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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.