Home / 122,382.11-168,890.23-68,671.10

Finding the Fourth Proportional to 122,382.11, 168,890.23 and 68,671.10

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Solution

The fourth proportional to 122,382.11, 168,890.23 and 68,671.10 is: 94,767.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,382.11 : 168,890.23 = 68,671.10 : x
  2. Step 2: Convert to fraction form
    122,382.11/168,890.23 = 68,671.10/x
  3. Step 3: Cross multiply
    122,382.11x = 168,890.23 × 68,671.10
  4. Step 4: Simplify right side
    122,382.11x = 11,597,878,123.90
  5. Step 5: Solve for x
    x = 11,597,878,123.90/122,382.11
  6. Step 6: Final answer
    x = 94,767.76

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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.