Home / 111,780.20-154,151.22-73,472.06

Finding the Fourth Proportional to 111,780.20, 154,151.22 and 73,472.06

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Solution

The fourth proportional to 111,780.20, 154,151.22 and 73,472.06 is: 101,322.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780.20 : 154,151.22 = 73,472.06 : x
  2. Step 2: Convert to fraction form
    111,780.20/154,151.22 = 73,472.06/x
  3. Step 3: Cross multiply
    111,780.20x = 154,151.22 × 73,472.06
  4. Step 4: Simplify right side
    111,780.20x = 11,325,807,684.91
  5. Step 5: Solve for x
    x = 11,325,807,684.91/111,780.20
  6. Step 6: Final answer
    x = 101,322.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.