Home / 161,744.37-223,204.21-90,122.86

Finding the Fourth Proportional to 161,744.37, 223,204.21 and 90,122.86

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Solution

The fourth proportional to 161,744.37, 223,204.21 and 90,122.86 is: 124,367.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,744.37 : 223,204.21 = 90,122.86 : x
  2. Step 2: Convert to fraction form
    161,744.37/223,204.21 = 90,122.86/x
  3. Step 3: Cross multiply
    161,744.37x = 223,204.21 × 90,122.86
  4. Step 4: Simplify right side
    161,744.37x = 20,115,801,769.24
  5. Step 5: Solve for x
    x = 20,115,801,769.24/161,744.37
  6. Step 6: Final answer
    x = 124,367.86

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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.