Home / 136,305.54-204,460.20-42,811.38

Finding the Fourth Proportional to 136,305.54, 204,460.20 and 42,811.38

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Solution

The fourth proportional to 136,305.54, 204,460.20 and 42,811.38 is: 64,217.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,305.54 : 204,460.20 = 42,811.38 : x
  2. Step 2: Convert to fraction form
    136,305.54/204,460.20 = 42,811.38/x
  3. Step 3: Cross multiply
    136,305.54x = 204,460.20 × 42,811.38
  4. Step 4: Simplify right side
    136,305.54x = 8,753,223,317.08
  5. Step 5: Solve for x
    x = 8,753,223,317.08/136,305.54
  6. Step 6: Final answer
    x = 64,217.66

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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.