Home / 181,428.45-272,143.31-55,069.76

Finding the Fourth Proportional to 181,428.45, 272,143.31 and 55,069.76

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Solution

The fourth proportional to 181,428.45, 272,143.31 and 55,069.76 is: 82,604.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,428.45 : 272,143.31 = 55,069.76 : x
  2. Step 2: Convert to fraction form
    181,428.45/272,143.31 = 55,069.76/x
  3. Step 3: Cross multiply
    181,428.45x = 272,143.31 × 55,069.76
  4. Step 4: Simplify right side
    181,428.45x = 14,986,867,172.32
  5. Step 5: Solve for x
    x = 14,986,867,172.32/181,428.45
  6. Step 6: Final answer
    x = 82,604.83

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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.