Home / 129,759.64-179,068.34-73,171.03

Finding the Fourth Proportional to 129,759.64, 179,068.34 and 73,171.03

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Solution

The fourth proportional to 129,759.64, 179,068.34 and 73,171.03 is: 100,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,759.64 : 179,068.34 = 73,171.03 : x
  2. Step 2: Convert to fraction form
    129,759.64/179,068.34 = 73,171.03/x
  3. Step 3: Cross multiply
    129,759.64x = 179,068.34 × 73,171.03
  4. Step 4: Simplify right side
    129,759.64x = 13,102,614,878.19
  5. Step 5: Solve for x
    x = 13,102,614,878.19/129,759.64
  6. Step 6: Final answer
    x = 100,976.04

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1.5x scale

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.