Home / 129,050.94-178,059.14-75,305.28

Finding the Fourth Proportional to 129,050.94, 178,059.14 and 75,305.28

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Solution

The fourth proportional to 129,050.94, 178,059.14 and 75,305.28 is: 103,903.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,050.94 : 178,059.14 = 75,305.28 : x
  2. Step 2: Convert to fraction form
    129,050.94/178,059.14 = 75,305.28/x
  3. Step 3: Cross multiply
    129,050.94x = 178,059.14 × 75,305.28
  4. Step 4: Simplify right side
    129,050.94x = 13,408,794,391.44
  5. Step 5: Solve for x
    x = 13,408,794,391.44/129,050.94
  6. Step 6: Final answer
    x = 103,903.11

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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.