Home / 112,219.91-154,723.40-71,867.33

Finding the Fourth Proportional to 112,219.91, 154,723.40 and 71,867.33

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Solution

The fourth proportional to 112,219.91, 154,723.40 and 71,867.33 is: 99,087.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,219.91 : 154,723.40 = 71,867.33 : x
  2. Step 2: Convert to fraction form
    112,219.91/154,723.40 = 71,867.33/x
  3. Step 3: Cross multiply
    112,219.91x = 154,723.40 × 71,867.33
  4. Step 4: Simplify right side
    112,219.91x = 11,119,556,513.57
  5. Step 5: Solve for x
    x = 11,119,556,513.57/112,219.91
  6. Step 6: Final answer
    x = 99,087.20

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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.