Home / 104,438.92-144,121.86-56,691.22

Finding the Fourth Proportional to 104,438.92, 144,121.86 and 56,691.22

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Solution

The fourth proportional to 104,438.92, 144,121.86 and 56,691.22 is: 78,231.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,438.92 : 144,121.86 = 56,691.22 : x
  2. Step 2: Convert to fraction form
    104,438.92/144,121.86 = 56,691.22/x
  3. Step 3: Cross multiply
    104,438.92x = 144,121.86 × 56,691.22
  4. Step 4: Simplify right side
    104,438.92x = 8,170,444,072.07
  5. Step 5: Solve for x
    x = 8,170,444,072.07/104,438.92
  6. Step 6: Final answer
    x = 78,231.79

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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.