Home / 135,674.13-187,217.76-75,243.66

Finding the Fourth Proportional to 135,674.13, 187,217.76 and 75,243.66

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Solution

The fourth proportional to 135,674.13, 187,217.76 and 75,243.66 is: 103,829.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,674.13 : 187,217.76 = 75,243.66 : x
  2. Step 2: Convert to fraction form
    135,674.13/187,217.76 = 75,243.66/x
  3. Step 3: Cross multiply
    135,674.13x = 187,217.76 × 75,243.66
  4. Step 4: Simplify right side
    135,674.13x = 14,086,949,479.40
  5. Step 5: Solve for x
    x = 14,086,949,479.40/135,674.13
  6. Step 6: Final answer
    x = 103,829.30

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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.