Home / 141,071.42-211,245.87-77,821.26

Finding the Fourth Proportional to 141,071.42, 211,245.87 and 77,821.26

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Solution

The fourth proportional to 141,071.42, 211,245.87 and 77,821.26 is: 116,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,071.42 : 211,245.87 = 77,821.26 : x
  2. Step 2: Convert to fraction form
    141,071.42/211,245.87 = 77,821.26/x
  3. Step 3: Cross multiply
    141,071.42x = 211,245.87 × 77,821.26
  4. Step 4: Simplify right side
    141,071.42x = 16,439,419,272.85
  5. Step 5: Solve for x
    x = 16,439,419,272.85/141,071.42
  6. Step 6: Final answer
    x = 116,532.60

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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.