Home / 135,686.21-187,240.37-75,251.50

Finding the Fourth Proportional to 135,686.21, 187,240.37 and 75,251.50

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Solution

The fourth proportional to 135,686.21, 187,240.37 and 75,251.50 is: 103,843.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,686.21 : 187,240.37 = 75,251.50 : x
  2. Step 2: Convert to fraction form
    135,686.21/187,240.37 = 75,251.50/x
  3. Step 3: Cross multiply
    135,686.21x = 187,240.37 × 75,251.50
  4. Step 4: Simplify right side
    135,686.21x = 14,090,118,843.04
  5. Step 5: Solve for x
    x = 14,090,118,843.04/135,686.21
  6. Step 6: Final answer
    x = 103,843.41

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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.