Home / 111,345.12-166,965.84-64,611.36

Finding the Fourth Proportional to 111,345.12, 166,965.84 and 64,611.36

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Solution

The fourth proportional to 111,345.12, 166,965.84 and 64,611.36 is: 96,886.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,345.12 : 166,965.84 = 64,611.36 : x
  2. Step 2: Convert to fraction form
    111,345.12/166,965.84 = 64,611.36/x
  3. Step 3: Cross multiply
    111,345.12x = 166,965.84 × 64,611.36
  4. Step 4: Simplify right side
    111,345.12x = 10,787,889,995.94
  5. Step 5: Solve for x
    x = 10,787,889,995.94/111,345.12
  6. Step 6: Final answer
    x = 96,886.96

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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.