Home / 75,853.49-113,780.12-71,178.77

Finding the Fourth Proportional to 75,853.49, 113,780.12 and 71,178.77

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Solution

The fourth proportional to 75,853.49, 113,780.12 and 71,178.77 is: 106,768.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,853.49 : 113,780.12 = 71,178.77 : x
  2. Step 2: Convert to fraction form
    75,853.49/113,780.12 = 71,178.77/x
  3. Step 3: Cross multiply
    75,853.49x = 113,780.12 × 71,178.77
  4. Step 4: Simplify right side
    75,853.49x = 8,098,728,920.61
  5. Step 5: Solve for x
    x = 8,098,728,920.61/75,853.49
  6. Step 6: Final answer
    x = 106,768.05

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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.