Home / 141,376.88-195,100.30-77,715.06

Finding the Fourth Proportional to 141,376.88, 195,100.30 and 77,715.06

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Solution

The fourth proportional to 141,376.88, 195,100.30 and 77,715.06 is: 107,246.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,376.88 : 195,100.30 = 77,715.06 : x
  2. Step 2: Convert to fraction form
    141,376.88/195,100.30 = 77,715.06/x
  3. Step 3: Cross multiply
    141,376.88x = 195,100.30 × 77,715.06
  4. Step 4: Simplify right side
    141,376.88x = 15,162,231,520.52
  5. Step 5: Solve for x
    x = 15,162,231,520.52/141,376.88
  6. Step 6: Final answer
    x = 107,246.90

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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.