Home / 141,251.13-211,704.47-78,068.70

Finding the Fourth Proportional to 141,251.13, 211,704.47 and 78,068.70

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Solution

The fourth proportional to 141,251.13, 211,704.47 and 78,068.70 is: 117,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,251.13 : 211,704.47 = 78,068.70 : x
  2. Step 2: Convert to fraction form
    141,251.13/211,704.47 = 78,068.70/x
  3. Step 3: Cross multiply
    141,251.13x = 211,704.47 × 78,068.70
  4. Step 4: Simplify right side
    141,251.13x = 16,527,492,757.09
  5. Step 5: Solve for x
    x = 16,527,492,757.09/141,251.13
  6. Step 6: Final answer
    x = 117,007.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.