Home / 102,178.35-141,010.11-61,869.33

Finding the Fourth Proportional to 102,178.35, 141,010.11 and 61,869.33

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Solution

The fourth proportional to 102,178.35, 141,010.11 and 61,869.33 is: 85,382.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,178.35 : 141,010.11 = 61,869.33 : x
  2. Step 2: Convert to fraction form
    102,178.35/141,010.11 = 61,869.33/x
  3. Step 3: Cross multiply
    102,178.35x = 141,010.11 × 61,869.33
  4. Step 4: Simplify right side
    102,178.35x = 8,724,201,028.93
  5. Step 5: Solve for x
    x = 8,724,201,028.93/102,178.35
  6. Step 6: Final answer
    x = 85,382.09

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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.