Home / 230,541.63-318,149.87-129,939.63

Finding the Fourth Proportional to 230,541.63, 318,149.87 and 129,939.63

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Solution

The fourth proportional to 230,541.63, 318,149.87 and 129,939.63 is: 179,318.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,541.63 : 318,149.87 = 129,939.63 : x
  2. Step 2: Convert to fraction form
    230,541.63/318,149.87 = 129,939.63/x
  3. Step 3: Cross multiply
    230,541.63x = 318,149.87 × 129,939.63
  4. Step 4: Simplify right side
    230,541.63x = 41,340,276,392.35
  5. Step 5: Solve for x
    x = 41,340,276,392.35/230,541.63
  6. Step 6: Final answer
    x = 179,318.05

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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.