Home / 102,281.82-141,144.98-56,961.72

Finding the Fourth Proportional to 102,281.82, 141,144.98 and 56,961.72

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Solution

The fourth proportional to 102,281.82, 141,144.98 and 56,961.72 is: 78,604.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,281.82 : 141,144.98 = 56,961.72 : x
  2. Step 2: Convert to fraction form
    102,281.82/141,144.98 = 56,961.72/x
  3. Step 3: Cross multiply
    102,281.82x = 141,144.98 × 56,961.72
  4. Step 4: Simplify right side
    102,281.82x = 8,039,859,839.63
  5. Step 5: Solve for x
    x = 8,039,859,839.63/102,281.82
  6. Step 6: Final answer
    x = 78,604.97

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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.