Home / 116,031.87-160,115.67-68,278.73

Finding the Fourth Proportional to 116,031.87, 160,115.67 and 68,278.73

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Solution

The fourth proportional to 116,031.87, 160,115.67 and 68,278.73 is: 94,219.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,031.87 : 160,115.67 = 68,278.73 : x
  2. Step 2: Convert to fraction form
    116,031.87/160,115.67 = 68,278.73/x
  3. Step 3: Cross multiply
    116,031.87x = 160,115.67 × 68,278.73
  4. Step 4: Simplify right side
    116,031.87x = 10,932,493,800.12
  5. Step 5: Solve for x
    x = 10,932,493,800.12/116,031.87
  6. Step 6: Final answer
    x = 94,219.75

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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.