Home / 134,310.20-185,333.52-77,711

Finding the Fourth Proportional to 134,310.20, 185,333.52 and 77,711

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Solution

The fourth proportional to 134,310.20, 185,333.52 and 77,711 is: 107,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,310.20 : 185,333.52 = 77,711 : x
  2. Step 2: Convert to fraction form
    134,310.20/185,333.52 = 77,711/x
  3. Step 3: Cross multiply
    134,310.20x = 185,333.52 × 77,711
  4. Step 4: Simplify right side
    134,310.20x = 14,402,453,172.72
  5. Step 5: Solve for x
    x = 14,402,453,172.72/134,310.20
  6. Step 6: Final answer
    x = 107,232.76

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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.