Home / 99,171.36-148,622.16-54,732

Finding the Fourth Proportional to 99,171.36, 148,622.16 and 54,732

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Solution

The fourth proportional to 99,171.36, 148,622.16 and 54,732 is: 82,023.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,171.36 : 148,622.16 = 54,732 : x
  2. Step 2: Convert to fraction form
    99,171.36/148,622.16 = 54,732/x
  3. Step 3: Cross multiply
    99,171.36x = 148,622.16 × 54,732
  4. Step 4: Simplify right side
    99,171.36x = 8,134,388,061.12
  5. Step 5: Solve for x
    x = 8,134,388,061.12/99,171.36
  6. Step 6: Final answer
    x = 82,023.56

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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.