Home / 112,458.42-168,715.31-79,243.36

Finding the Fourth Proportional to 112,458.42, 168,715.31 and 79,243.36

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Solution

The fourth proportional to 112,458.42, 168,715.31 and 79,243.36 is: 118,884.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,458.42 : 168,715.31 = 79,243.36 : x
  2. Step 2: Convert to fraction form
    112,458.42/168,715.31 = 79,243.36/x
  3. Step 3: Cross multiply
    112,458.42x = 168,715.31 × 79,243.36
  4. Step 4: Simplify right side
    112,458.42x = 13,369,567,229.84
  5. Step 5: Solve for x
    x = 13,369,567,229.84/112,458.42
  6. Step 6: Final answer
    x = 118,884.54

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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.