Home / 109,414.08-150,999.72-61,671.92

Finding the Fourth Proportional to 109,414.08, 150,999.72 and 61,671.92

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Solution

The fourth proportional to 109,414.08, 150,999.72 and 61,671.92 is: 85,111.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,414.08 : 150,999.72 = 61,671.92 : x
  2. Step 2: Convert to fraction form
    109,414.08/150,999.72 = 61,671.92/x
  3. Step 3: Cross multiply
    109,414.08x = 150,999.72 × 61,671.92
  4. Step 4: Simplify right side
    109,414.08x = 9,312,442,651.86
  5. Step 5: Solve for x
    x = 9,312,442,651.86/109,414.08
  6. Step 6: Final answer
    x = 85,111.92

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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.