Home / 141,415.71-195,154.40-77,757.60

Finding the Fourth Proportional to 141,415.71, 195,154.40 and 77,757.60

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Solution

The fourth proportional to 141,415.71, 195,154.40 and 77,757.60 is: 107,305.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,415.71 : 195,154.40 = 77,757.60 : x
  2. Step 2: Convert to fraction form
    141,415.71/195,154.40 = 77,757.60/x
  3. Step 3: Cross multiply
    141,415.71x = 195,154.40 × 77,757.60
  4. Step 4: Simplify right side
    141,415.71x = 15,174,737,384.65
  5. Step 5: Solve for x
    x = 15,174,737,384.65/141,415.71
  6. Step 6: Final answer
    x = 107,305.88

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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.