Home / 129,629.52-178,887.96-73,059.12

Finding the Fourth Proportional to 129,629.52, 178,887.96 and 73,059.12

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Solution

The fourth proportional to 129,629.52, 178,887.96 and 73,059.12 is: 100,821.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.52 : 178,887.96 = 73,059.12 : x
  2. Step 2: Convert to fraction form
    129,629.52/178,887.96 = 73,059.12/x
  3. Step 3: Cross multiply
    129,629.52x = 178,887.96 × 73,059.12
  4. Step 4: Simplify right side
    129,629.52x = 13,069,396,936.20
  5. Step 5: Solve for x
    x = 13,069,396,936.20/129,629.52
  6. Step 6: Final answer
    x = 100,821.15

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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.