Home / 189,476.10-261,473.13-108,901.53

Finding the Fourth Proportional to 189,476.10, 261,473.13 and 108,901.53

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Solution

The fourth proportional to 189,476.10, 261,473.13 and 108,901.53 is: 150,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,476.10 : 261,473.13 = 108,901.53 : x
  2. Step 2: Convert to fraction form
    189,476.10/261,473.13 = 108,901.53/x
  3. Step 3: Cross multiply
    189,476.10x = 261,473.13 × 108,901.53
  4. Step 4: Simplify right side
    189,476.10x = 28,474,823,910.89
  5. Step 5: Solve for x
    x = 28,474,823,910.89/189,476.10
  6. Step 6: Final answer
    x = 150,281.88

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1.5x scale

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.