Home / 104,431.23-144,006.12-61,981.56

Finding the Fourth Proportional to 104,431.23, 144,006.12 and 61,981.56

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Solution

The fourth proportional to 104,431.23, 144,006.12 and 61,981.56 is: 85,469.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,431.23 : 144,006.12 = 61,981.56 : x
  2. Step 2: Convert to fraction form
    104,431.23/144,006.12 = 61,981.56/x
  3. Step 3: Cross multiply
    104,431.23x = 144,006.12 × 61,981.56
  4. Step 4: Simplify right side
    104,431.23x = 8,925,723,967.15
  5. Step 5: Solve for x
    x = 8,925,723,967.15/104,431.23
  6. Step 6: Final answer
    x = 85,469.87

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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.