Home / 208,269.30-312,339.32-75,132.18

Finding the Fourth Proportional to 208,269.30, 312,339.32 and 75,132.18

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Solution

The fourth proportional to 208,269.30, 312,339.32 and 75,132.18 is: 112,674.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,269.30 : 312,339.32 = 75,132.18 : x
  2. Step 2: Convert to fraction form
    208,269.30/312,339.32 = 75,132.18/x
  3. Step 3: Cross multiply
    208,269.30x = 312,339.32 × 75,132.18
  4. Step 4: Simplify right side
    208,269.30x = 23,466,734,011.32
  5. Step 5: Solve for x
    x = 23,466,734,011.32/208,269.30
  6. Step 6: Final answer
    x = 112,674.96

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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.