Home / 208,854.20-312,859.93-96,378.15

Finding the Fourth Proportional to 208,854.20, 312,859.93 and 96,378.15

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Solution

The fourth proportional to 208,854.20, 312,859.93 and 96,378.15 is: 144,372.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,854.20 : 312,859.93 = 96,378.15 : x
  2. Step 2: Convert to fraction form
    208,854.20/312,859.93 = 96,378.15/x
  3. Step 3: Cross multiply
    208,854.20x = 312,859.93 × 96,378.15
  4. Step 4: Simplify right side
    208,854.20x = 30,152,861,262.53
  5. Step 5: Solve for x
    x = 30,152,861,262.53/208,854.20
  6. Step 6: Final answer
    x = 144,372.78

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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.