Home / 111,933.20-167,899.80-38,061.20

Finding the Fourth Proportional to 111,933.20, 167,899.80 and 38,061.20

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Solution

The fourth proportional to 111,933.20, 167,899.80 and 38,061.20 is: 57,091.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,933.20 : 167,899.80 = 38,061.20 : x
  2. Step 2: Convert to fraction form
    111,933.20/167,899.80 = 38,061.20/x
  3. Step 3: Cross multiply
    111,933.20x = 167,899.80 × 38,061.20
  4. Step 4: Simplify right side
    111,933.20x = 6,390,467,867.76
  5. Step 5: Solve for x
    x = 6,390,467,867.76/111,933.20
  6. Step 6: Final answer
    x = 57,091.80

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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.