Home / 141,147.72-194,784.05-76,616.92

Finding the Fourth Proportional to 141,147.72, 194,784.05 and 76,616.92

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Solution

The fourth proportional to 141,147.72, 194,784.05 and 76,616.92 is: 105,731.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,147.72 : 194,784.05 = 76,616.92 : x
  2. Step 2: Convert to fraction form
    141,147.72/194,784.05 = 76,616.92/x
  3. Step 3: Cross multiply
    141,147.72x = 194,784.05 × 76,616.92
  4. Step 4: Simplify right side
    141,147.72x = 14,923,753,976.13
  5. Step 5: Solve for x
    x = 14,923,753,976.13/141,147.72
  6. Step 6: Final answer
    x = 105,731.46

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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.