Home / 126,219.67-189,339.92-90,845.63

Finding the Fourth Proportional to 126,219.67, 189,339.92 and 90,845.63

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Solution

The fourth proportional to 126,219.67, 189,339.92 and 90,845.63 is: 136,275.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,219.67 : 189,339.92 = 90,845.63 : x
  2. Step 2: Convert to fraction form
    126,219.67/189,339.92 = 90,845.63/x
  3. Step 3: Cross multiply
    126,219.67x = 189,339.92 × 90,845.63
  4. Step 4: Simplify right side
    126,219.67x = 17,200,703,596.96
  5. Step 5: Solve for x
    x = 17,200,703,596.96/126,219.67
  6. Step 6: Final answer
    x = 136,275.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.