Home / 129,761.38-179,071.32-76,046.77

Finding the Fourth Proportional to 129,761.38, 179,071.32 and 76,046.77

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Solution

The fourth proportional to 129,761.38, 179,071.32 and 76,046.77 is: 104,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.38 : 179,071.32 = 76,046.77 : x
  2. Step 2: Convert to fraction form
    129,761.38/179,071.32 = 76,046.77/x
  3. Step 3: Cross multiply
    129,761.38x = 179,071.32 × 76,046.77
  4. Step 4: Simplify right side
    129,761.38x = 13,617,795,485.64
  5. Step 5: Solve for x
    x = 13,617,795,485.64/129,761.38
  6. Step 6: Final answer
    x = 104,944.90

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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.