Home / 135,824.92-187,386.96-100,100.14

Finding the Fourth Proportional to 135,824.92, 187,386.96 and 100,100.14

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Solution

The fourth proportional to 135,824.92, 187,386.96 and 100,100.14 is: 138,100.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,824.92 : 187,386.96 = 100,100.14 : x
  2. Step 2: Convert to fraction form
    135,824.92/187,386.96 = 100,100.14/x
  3. Step 3: Cross multiply
    135,824.92x = 187,386.96 × 100,100.14
  4. Step 4: Simplify right side
    135,824.92x = 18,757,460,930.17
  5. Step 5: Solve for x
    x = 18,757,460,930.17/135,824.92
  6. Step 6: Final answer
    x = 138,100.29

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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.