Home / 126,389.20-189,587-32,899.28

Finding the Fourth Proportional to 126,389.20, 189,587 and 32,899.28

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Solution

The fourth proportional to 126,389.20, 189,587 and 32,899.28 is: 49,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,389.20 : 189,587 = 32,899.28 : x
  2. Step 2: Convert to fraction form
    126,389.20/189,587 = 32,899.28/x
  3. Step 3: Cross multiply
    126,389.20x = 189,587 × 32,899.28
  4. Step 4: Simplify right side
    126,389.20x = 6,237,275,797.36
  5. Step 5: Solve for x
    x = 6,237,275,797.36/126,389.20
  6. Step 6: Final answer
    x = 49,349.75

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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.