Home / 126,253.22-189,251.85-81,908.24

Finding the Fourth Proportional to 126,253.22, 189,251.85 and 81,908.24

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Solution

The fourth proportional to 126,253.22, 189,251.85 and 81,908.24 is: 122,779.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,253.22 : 189,251.85 = 81,908.24 : x
  2. Step 2: Convert to fraction form
    126,253.22/189,251.85 = 81,908.24/x
  3. Step 3: Cross multiply
    126,253.22x = 189,251.85 × 81,908.24
  4. Step 4: Simplify right side
    126,253.22x = 15,501,285,950.24
  5. Step 5: Solve for x
    x = 15,501,285,950.24/126,253.22
  6. Step 6: Final answer
    x = 122,779.33

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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.