Home / 112,215.72-154,717.62-71,863.14

Finding the Fourth Proportional to 112,215.72, 154,717.62 and 71,863.14

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Solution

The fourth proportional to 112,215.72, 154,717.62 and 71,863.14 is: 99,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.72 : 154,717.62 = 71,863.14 : x
  2. Step 2: Convert to fraction form
    112,215.72/154,717.62 = 71,863.14/x
  3. Step 3: Cross multiply
    112,215.72x = 154,717.62 × 71,863.14
  4. Step 4: Simplify right side
    112,215.72x = 11,118,492,853.62
  5. Step 5: Solve for x
    x = 11,118,492,853.62/112,215.72
  6. Step 6: Final answer
    x = 99,081.42

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1.5x scale

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.