Home / 129,761.64-179,103.69-73,205.82

Finding the Fourth Proportional to 129,761.64, 179,103.69 and 73,205.82

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Solution

The fourth proportional to 129,761.64, 179,103.69 and 73,205.82 is: 101,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.64 : 179,103.69 = 73,205.82 : x
  2. Step 2: Convert to fraction form
    129,761.64/179,103.69 = 73,205.82/x
  3. Step 3: Cross multiply
    129,761.64x = 179,103.69 × 73,205.82
  4. Step 4: Simplify right side
    129,761.64x = 13,111,432,491.48
  5. Step 5: Solve for x
    x = 13,111,432,491.48/129,761.64
  6. Step 6: Final answer
    x = 101,042.44

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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.