Home / 134,141.10-200,920.05-81,458.70

Finding the Fourth Proportional to 134,141.10, 200,920.05 and 81,458.70

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Solution

The fourth proportional to 134,141.10, 200,920.05 and 81,458.70 is: 122,010.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,141.10 : 200,920.05 = 81,458.70 : x
  2. Step 2: Convert to fraction form
    134,141.10/200,920.05 = 81,458.70/x
  3. Step 3: Cross multiply
    134,141.10x = 200,920.05 × 81,458.70
  4. Step 4: Simplify right side
    134,141.10x = 16,366,686,076.94
  5. Step 5: Solve for x
    x = 16,366,686,076.94/134,141.10
  6. Step 6: Final answer
    x = 122,010.97

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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.