Home / 161,855.75-223,358.37-90,240.14

Finding the Fourth Proportional to 161,855.75, 223,358.37 and 90,240.14

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Solution

The fourth proportional to 161,855.75, 223,358.37 and 90,240.14 is: 124,529.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,855.75 : 223,358.37 = 90,240.14 : x
  2. Step 2: Convert to fraction form
    161,855.75/223,358.37 = 90,240.14/x
  3. Step 3: Cross multiply
    161,855.75x = 223,358.37 × 90,240.14
  4. Step 4: Simplify right side
    161,855.75x = 20,155,890,578.97
  5. Step 5: Solve for x
    x = 20,155,890,578.97/161,855.75
  6. Step 6: Final answer
    x = 124,529.96

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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.