Home / 185,172.05-255,537.92-100,289.10

Finding the Fourth Proportional to 185,172.05, 255,537.92 and 100,289.10

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Solution

The fourth proportional to 185,172.05, 255,537.92 and 100,289.10 is: 138,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,172.05 : 255,537.92 = 100,289.10 : x
  2. Step 2: Convert to fraction form
    185,172.05/255,537.92 = 100,289.10/x
  3. Step 3: Cross multiply
    185,172.05x = 255,537.92 × 100,289.10
  4. Step 4: Simplify right side
    185,172.05x = 25,627,667,511.23
  5. Step 5: Solve for x
    x = 25,627,667,511.23/185,172.05
  6. Step 6: Final answer
    x = 138,399.22

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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.