Home / 189,769.10-261,881.61-109,195.02

Finding the Fourth Proportional to 189,769.10, 261,881.61 and 109,195.02

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Solution

The fourth proportional to 189,769.10, 261,881.61 and 109,195.02 is: 150,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,769.10 : 261,881.61 = 109,195.02 : x
  2. Step 2: Convert to fraction form
    189,769.10/261,881.61 = 109,195.02/x
  3. Step 3: Cross multiply
    189,769.10x = 261,881.61 × 109,195.02
  4. Step 4: Simplify right side
    189,769.10x = 28,596,167,232.10
  5. Step 5: Solve for x
    x = 28,596,167,232.10/189,769.10
  6. Step 6: Final answer
    x = 150,689.27

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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.