Home / 204,922.92-307,373.22-78,623.76

Finding the Fourth Proportional to 204,922.92, 307,373.22 and 78,623.76

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Solution

The fourth proportional to 204,922.92, 307,373.22 and 78,623.76 is: 117,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,922.92 : 307,373.22 = 78,623.76 : x
  2. Step 2: Convert to fraction form
    204,922.92/307,373.22 = 78,623.76/x
  3. Step 3: Cross multiply
    204,922.92x = 307,373.22 × 78,623.76
  4. Step 4: Simplify right side
    204,922.92x = 24,166,838,279.71
  5. Step 5: Solve for x
    x = 24,166,838,279.71/204,922.92
  6. Step 6: Final answer
    x = 117,931.36

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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.