Home / 111,213.12-166,767.84-64,479.36

Finding the Fourth Proportional to 111,213.12, 166,767.84 and 64,479.36

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Solution

The fourth proportional to 111,213.12, 166,767.84 and 64,479.36 is: 96,688.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,213.12 : 166,767.84 = 64,479.36 : x
  2. Step 2: Convert to fraction form
    111,213.12/166,767.84 = 64,479.36/x
  3. Step 3: Cross multiply
    111,213.12x = 166,767.84 × 64,479.36
  4. Step 4: Simplify right side
    111,213.12x = 10,753,083,591.78
  5. Step 5: Solve for x
    x = 10,753,083,591.78/111,213.12
  6. Step 6: Final answer
    x = 96,688.98

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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.