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Finding the Fourth Proportional to 111,950.48, 154,422.24 and 66,597.78

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Solution

The fourth proportional to 111,950.48, 154,422.24 and 66,597.78 is: 91,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,950.48 : 154,422.24 = 66,597.78 : x
  2. Step 2: Convert to fraction form
    111,950.48/154,422.24 = 66,597.78/x
  3. Step 3: Cross multiply
    111,950.48x = 154,422.24 × 66,597.78
  4. Step 4: Simplify right side
    111,950.48x = 10,284,178,366.63
  5. Step 5: Solve for x
    x = 10,284,178,366.63/111,950.48
  6. Step 6: Final answer
    x = 91,863.64

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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.