Home / 134,408.20-185,480.82-77,818.12

Finding the Fourth Proportional to 134,408.20, 185,480.82 and 77,818.12

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Solution

The fourth proportional to 134,408.20, 185,480.82 and 77,818.12 is: 107,387.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,408.20 : 185,480.82 = 77,818.12 : x
  2. Step 2: Convert to fraction form
    134,408.20/185,480.82 = 77,818.12/x
  3. Step 3: Cross multiply
    134,408.20x = 185,480.82 × 77,818.12
  4. Step 4: Simplify right side
    134,408.20x = 14,433,768,708.46
  5. Step 5: Solve for x
    x = 14,433,768,708.46/134,408.20
  6. Step 6: Final answer
    x = 107,387.56

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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.