Home / 111,924.28-154,453.60-64,174.76

Finding the Fourth Proportional to 111,924.28, 154,453.60 and 64,174.76

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Solution

The fourth proportional to 111,924.28, 154,453.60 and 64,174.76 is: 88,560.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,924.28 : 154,453.60 = 64,174.76 : x
  2. Step 2: Convert to fraction form
    111,924.28/154,453.60 = 64,174.76/x
  3. Step 3: Cross multiply
    111,924.28x = 154,453.60 × 64,174.76
  4. Step 4: Simplify right side
    111,924.28x = 9,912,022,711.14
  5. Step 5: Solve for x
    x = 9,912,022,711.14/111,924.28
  6. Step 6: Final answer
    x = 88,560.08

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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.