Home / 135,406.20-187,217.26-118,591

Finding the Fourth Proportional to 135,406.20, 187,217.26 and 118,591

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Solution

The fourth proportional to 135,406.20, 187,217.26 and 118,591 is: 163,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,406.20 : 187,217.26 = 118,591 : x
  2. Step 2: Convert to fraction form
    135,406.20/187,217.26 = 118,591/x
  3. Step 3: Cross multiply
    135,406.20x = 187,217.26 × 118,591
  4. Step 4: Simplify right side
    135,406.20x = 22,202,282,080.66
  5. Step 5: Solve for x
    x = 22,202,282,080.66/135,406.20
  6. Step 6: Final answer
    x = 163,967.99

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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.