Home / 235,081.12-352,621.68-68,869.12

Finding the Fourth Proportional to 235,081.12, 352,621.68 and 68,869.12

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Solution

The fourth proportional to 235,081.12, 352,621.68 and 68,869.12 is: 103,303.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,081.12 : 352,621.68 = 68,869.12 : x
  2. Step 2: Convert to fraction form
    235,081.12/352,621.68 = 68,869.12/x
  3. Step 3: Cross multiply
    235,081.12x = 352,621.68 × 68,869.12
  4. Step 4: Simplify right side
    235,081.12x = 24,284,744,794.52
  5. Step 5: Solve for x
    x = 24,284,744,794.52/235,081.12
  6. Step 6: Final answer
    x = 103,303.68

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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.