Home / 135,742.62-187,320.21-82,018.14

Finding the Fourth Proportional to 135,742.62, 187,320.21 and 82,018.14

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Solution

The fourth proportional to 135,742.62, 187,320.21 and 82,018.14 is: 113,182.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,742.62 : 187,320.21 = 82,018.14 : x
  2. Step 2: Convert to fraction form
    135,742.62/187,320.21 = 82,018.14/x
  3. Step 3: Cross multiply
    135,742.62x = 187,320.21 × 82,018.14
  4. Step 4: Simplify right side
    135,742.62x = 15,363,655,208.61
  5. Step 5: Solve for x
    x = 15,363,655,208.61/135,742.62
  6. Step 6: Final answer
    x = 113,182.25

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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.