Home / 189,559.04-261,591.12-109,002.11

Finding the Fourth Proportional to 189,559.04, 261,591.12 and 109,002.11

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Solution

The fourth proportional to 189,559.04, 261,591.12 and 109,002.11 is: 150,422.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,559.04 : 261,591.12 = 109,002.11 : x
  2. Step 2: Convert to fraction form
    189,559.04/261,591.12 = 109,002.11/x
  3. Step 3: Cross multiply
    189,559.04x = 261,591.12 × 109,002.11
  4. Step 4: Simplify right side
    189,559.04x = 28,513,982,729.31
  5. Step 5: Solve for x
    x = 28,513,982,729.31/189,559.04
  6. Step 6: Final answer
    x = 150,422.70

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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.