Home / 111,972.55-154,542.23-64,241.68

Finding the Fourth Proportional to 111,972.55, 154,542.23 and 64,241.68

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Solution

The fourth proportional to 111,972.55, 154,542.23 and 64,241.68 is: 88,665.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,972.55 : 154,542.23 = 64,241.68 : x
  2. Step 2: Convert to fraction form
    111,972.55/154,542.23 = 64,241.68/x
  3. Step 3: Cross multiply
    111,972.55x = 154,542.23 × 64,241.68
  4. Step 4: Simplify right side
    111,972.55x = 9,928,051,874.04
  5. Step 5: Solve for x
    x = 9,928,051,874.04/111,972.55
  6. Step 6: Final answer
    x = 88,665.06

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1.5x scale

Why These Related Problems?

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