Home / 112,215.54-154,717.38-71,862.96

Finding the Fourth Proportional to 112,215.54, 154,717.38 and 71,862.96

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Solution

The fourth proportional to 112,215.54, 154,717.38 and 71,862.96 is: 99,081.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.54 : 154,717.38 = 71,862.96 : x
  2. Step 2: Convert to fraction form
    112,215.54/154,717.38 = 71,862.96/x
  3. Step 3: Cross multiply
    112,215.54x = 154,717.38 × 71,862.96
  4. Step 4: Simplify right side
    112,215.54x = 11,118,448,890.24
  5. Step 5: Solve for x
    x = 11,118,448,890.24/112,215.54
  6. Step 6: Final answer
    x = 99,081.19

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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.