Home / 123,927.20-185,631.60-68,458.40

Finding the Fourth Proportional to 123,927.20, 185,631.60 and 68,458.40

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Solution

The fourth proportional to 123,927.20, 185,631.60 and 68,458.40 is: 102,544.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,927.20 : 185,631.60 = 68,458.40 : x
  2. Step 2: Convert to fraction form
    123,927.20/185,631.60 = 68,458.40/x
  3. Step 3: Cross multiply
    123,927.20x = 185,631.60 × 68,458.40
  4. Step 4: Simplify right side
    123,927.20x = 12,708,042,325.44
  5. Step 5: Solve for x
    x = 12,708,042,325.44/123,927.20
  6. Step 6: Final answer
    x = 102,544.42

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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.