Home / 189,399.71-261,416.33-108,873.95

Finding the Fourth Proportional to 189,399.71, 261,416.33 and 108,873.95

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Solution

The fourth proportional to 189,399.71, 261,416.33 and 108,873.95 is: 150,271.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,399.71 : 261,416.33 = 108,873.95 : x
  2. Step 2: Convert to fraction form
    189,399.71/261,416.33 = 108,873.95/x
  3. Step 3: Cross multiply
    189,399.71x = 261,416.33 × 108,873.95
  4. Step 4: Simplify right side
    189,399.71x = 28,461,428,441.60
  5. Step 5: Solve for x
    x = 28,461,428,441.60/189,399.71
  6. Step 6: Final answer
    x = 150,271.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.