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Finding the Fourth Proportional to 111,392.68, 167,063.36 and 66,426.72

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Solution

The fourth proportional to 111,392.68, 167,063.36 and 66,426.72 is: 99,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,392.68 : 167,063.36 = 66,426.72 : x
  2. Step 2: Convert to fraction form
    111,392.68/167,063.36 = 66,426.72/x
  3. Step 3: Cross multiply
    111,392.68x = 167,063.36 × 66,426.72
  4. Step 4: Simplify right side
    111,392.68x = 11,097,471,036.98
  5. Step 5: Solve for x
    x = 11,097,471,036.98/111,392.68
  6. Step 6: Final answer
    x = 99,624.78

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1.5x scale

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.