Home / 112,120.46-154,600.54-91,638.96

Finding the Fourth Proportional to 112,120.46, 154,600.54 and 91,638.96

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Solution

The fourth proportional to 112,120.46, 154,600.54 and 91,638.96 is: 126,359.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,120.46 : 154,600.54 = 91,638.96 : x
  2. Step 2: Convert to fraction form
    112,120.46/154,600.54 = 91,638.96/x
  3. Step 3: Cross multiply
    112,120.46x = 154,600.54 × 91,638.96
  4. Step 4: Simplify right side
    112,120.46x = 14,167,432,701.04
  5. Step 5: Solve for x
    x = 14,167,432,701.04/112,120.46
  6. Step 6: Final answer
    x = 126,359.03

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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.