Home / 111,632.18-154,028.08-66,325.28

Finding the Fourth Proportional to 111,632.18, 154,028.08 and 66,325.28

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Solution

The fourth proportional to 111,632.18, 154,028.08 and 66,325.28 is: 91,514.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,632.18 : 154,028.08 = 66,325.28 : x
  2. Step 2: Convert to fraction form
    111,632.18/154,028.08 = 66,325.28/x
  3. Step 3: Cross multiply
    111,632.18x = 154,028.08 × 66,325.28
  4. Step 4: Simplify right side
    111,632.18x = 10,215,955,202.24
  5. Step 5: Solve for x
    x = 10,215,955,202.24/111,632.18
  6. Step 6: Final answer
    x = 91,514.43

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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.