Home / 89,126.88-133,755.66-71,805.84

Finding the Fourth Proportional to 89,126.88, 133,755.66 and 71,805.84

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Solution

The fourth proportional to 89,126.88, 133,755.66 and 71,805.84 is: 107,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,126.88 : 133,755.66 = 71,805.84 : x
  2. Step 2: Convert to fraction form
    89,126.88/133,755.66 = 71,805.84/x
  3. Step 3: Cross multiply
    89,126.88x = 133,755.66 × 71,805.84
  4. Step 4: Simplify right side
    89,126.88x = 9,604,437,521.05
  5. Step 5: Solve for x
    x = 9,604,437,521.05/89,126.88
  6. Step 6: Final answer
    x = 107,761.40

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1.5x scale

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.