Home / 230,115.94-317,589.15-129,533.38

Finding the Fourth Proportional to 230,115.94, 317,589.15 and 129,533.38

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Solution

The fourth proportional to 230,115.94, 317,589.15 and 129,533.38 is: 178,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,115.94 : 317,589.15 = 129,533.38 : x
  2. Step 2: Convert to fraction form
    230,115.94/317,589.15 = 129,533.38/x
  3. Step 3: Cross multiply
    230,115.94x = 317,589.15 × 129,533.38
  4. Step 4: Simplify right side
    230,115.94x = 41,138,395,742.60
  5. Step 5: Solve for x
    x = 41,138,395,742.60/230,115.94
  6. Step 6: Final answer
    x = 178,772.48

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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.