Home / 189,655.30-261,713.81-109,084.19

Finding the Fourth Proportional to 189,655.30, 261,713.81 and 109,084.19

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Solution

The fourth proportional to 189,655.30, 261,713.81 and 109,084.19 is: 150,530.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,655.30 : 261,713.81 = 109,084.19 : x
  2. Step 2: Convert to fraction form
    189,655.30/261,713.81 = 109,084.19/x
  3. Step 3: Cross multiply
    189,655.30x = 261,713.81 × 109,084.19
  4. Step 4: Simplify right side
    189,655.30x = 28,548,837,939.81
  5. Step 5: Solve for x
    x = 28,548,837,939.81/189,655.30
  6. Step 6: Final answer
    x = 150,530.13

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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.