Home / 126,151.18-189,226.77-86,588.35

Finding the Fourth Proportional to 126,151.18, 189,226.77 and 86,588.35

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Solution

The fourth proportional to 126,151.18, 189,226.77 and 86,588.35 is: 129,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,151.18 : 189,226.77 = 86,588.35 : x
  2. Step 2: Convert to fraction form
    126,151.18/189,226.77 = 86,588.35/x
  3. Step 3: Cross multiply
    126,151.18x = 189,226.77 × 86,588.35
  4. Step 4: Simplify right side
    126,151.18x = 16,384,833,790.13
  5. Step 5: Solve for x
    x = 16,384,833,790.13/126,151.18
  6. Step 6: Final answer
    x = 129,882.53

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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.