Home / 141,131.84-194,761.20-77,470.72

Finding the Fourth Proportional to 141,131.84, 194,761.20 and 77,470.72

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Solution

The fourth proportional to 141,131.84, 194,761.20 and 77,470.72 is: 106,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,131.84 : 194,761.20 = 77,470.72 : x
  2. Step 2: Convert to fraction form
    141,131.84/194,761.20 = 77,470.72/x
  3. Step 3: Cross multiply
    141,131.84x = 194,761.20 × 77,470.72
  4. Step 4: Simplify right side
    141,131.84x = 15,088,290,392.06
  5. Step 5: Solve for x
    x = 15,088,290,392.06/141,131.84
  6. Step 6: Final answer
    x = 106,909.19

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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.