Home / 112,215.27-154,856.30-61,914.39

Finding the Fourth Proportional to 112,215.27, 154,856.30 and 61,914.39

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Solution

The fourth proportional to 112,215.27, 154,856.30 and 61,914.39 is: 85,441.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,215.27 : 154,856.30 = 61,914.39 : x
  2. Step 2: Convert to fraction form
    112,215.27/154,856.30 = 61,914.39/x
  3. Step 3: Cross multiply
    112,215.27x = 154,856.30 × 61,914.39
  4. Step 4: Simplify right side
    112,215.27x = 9,587,833,042.59
  5. Step 5: Solve for x
    x = 9,587,833,042.59/112,215.27
  6. Step 6: Final answer
    x = 85,441.43

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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.