Home / 181,921.40-272,882.10-111,840.20

Finding the Fourth Proportional to 181,921.40, 272,882.10 and 111,840.20

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Solution

The fourth proportional to 181,921.40, 272,882.10 and 111,840.20 is: 167,760.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,921.40 : 272,882.10 = 111,840.20 : x
  2. Step 2: Convert to fraction form
    181,921.40/272,882.10 = 111,840.20/x
  3. Step 3: Cross multiply
    181,921.40x = 272,882.10 × 111,840.20
  4. Step 4: Simplify right side
    181,921.40x = 30,519,188,640.42
  5. Step 5: Solve for x
    x = 30,519,188,640.42/181,921.40
  6. Step 6: Final answer
    x = 167,760.30

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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.