Home / 126,231.21-189,166.39-92,688.10

Finding the Fourth Proportional to 126,231.21, 189,166.39 and 92,688.10

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Solution

The fourth proportional to 126,231.21, 189,166.39 and 92,688.10 is: 138,899.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,231.21 : 189,166.39 = 92,688.10 : x
  2. Step 2: Convert to fraction form
    126,231.21/189,166.39 = 92,688.10/x
  3. Step 3: Cross multiply
    126,231.21x = 189,166.39 × 92,688.10
  4. Step 4: Simplify right side
    126,231.21x = 17,533,472,568.32
  5. Step 5: Solve for x
    x = 17,533,472,568.32/126,231.21
  6. Step 6: Final answer
    x = 138,899.66

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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.