Home / 135,625.10-187,155.14-75,192.21

Finding the Fourth Proportional to 135,625.10, 187,155.14 and 75,192.21

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Solution

The fourth proportional to 135,625.10, 187,155.14 and 75,192.21 is: 103,761.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,625.10 : 187,155.14 = 75,192.21 : x
  2. Step 2: Convert to fraction form
    135,625.10/187,155.14 = 75,192.21/x
  3. Step 3: Cross multiply
    135,625.10x = 187,155.14 × 75,192.21
  4. Step 4: Simplify right side
    135,625.10x = 14,072,608,213.50
  5. Step 5: Solve for x
    x = 14,072,608,213.50/135,625.10
  6. Step 6: Final answer
    x = 103,761.09

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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.