Home / 135,688.82-187,249.32-75,259.58

Finding the Fourth Proportional to 135,688.82, 187,249.32 and 75,259.58

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Solution

The fourth proportional to 135,688.82, 187,249.32 and 75,259.58 is: 103,857.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,688.82 : 187,249.32 = 75,259.58 : x
  2. Step 2: Convert to fraction form
    135,688.82/187,249.32 = 75,259.58/x
  3. Step 3: Cross multiply
    135,688.82x = 187,249.32 × 75,259.58
  4. Step 4: Simplify right side
    135,688.82x = 14,092,305,178.49
  5. Step 5: Solve for x
    x = 14,092,305,178.49/135,688.82
  6. Step 6: Final answer
    x = 103,857.53

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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.