Home / 181,434.80-272,152.20-131,279.60

Finding the Fourth Proportional to 181,434.80, 272,152.20 and 131,279.60

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Solution

The fourth proportional to 181,434.80, 272,152.20 and 131,279.60 is: 196,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,434.80 : 272,152.20 = 131,279.60 : x
  2. Step 2: Convert to fraction form
    181,434.80/272,152.20 = 131,279.60/x
  3. Step 3: Cross multiply
    181,434.80x = 272,152.20 × 131,279.60
  4. Step 4: Simplify right side
    181,434.80x = 35,728,031,955.12
  5. Step 5: Solve for x
    x = 35,728,031,955.12/181,434.80
  6. Step 6: Final answer
    x = 196,919.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.