Home / 133,195.92-183,813.98-79,512.10

Finding the Fourth Proportional to 133,195.92, 183,813.98 and 79,512.10

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Solution

The fourth proportional to 133,195.92, 183,813.98 and 79,512.10 is: 109,728.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,195.92 : 183,813.98 = 79,512.10 : x
  2. Step 2: Convert to fraction form
    133,195.92/183,813.98 = 79,512.10/x
  3. Step 3: Cross multiply
    133,195.92x = 183,813.98 × 79,512.10
  4. Step 4: Simplify right side
    133,195.92x = 14,615,435,298.40
  5. Step 5: Solve for x
    x = 14,615,435,298.40/133,195.92
  6. Step 6: Final answer
    x = 109,728.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.