Home / 181,921.60-272,785.20-76,621.60

Finding the Fourth Proportional to 181,921.60, 272,785.20 and 76,621.60

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Solution

The fourth proportional to 181,921.60, 272,785.20 and 76,621.60 is: 114,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,921.60 : 272,785.20 = 76,621.60 : x
  2. Step 2: Convert to fraction form
    181,921.60/272,785.20 = 76,621.60/x
  3. Step 3: Cross multiply
    181,921.60x = 272,785.20 × 76,621.60
  4. Step 4: Simplify right side
    181,921.60x = 20,901,238,480.32
  5. Step 5: Solve for x
    x = 20,901,238,480.32/181,921.60
  6. Step 6: Final answer
    x = 114,891.46

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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.