Home / 161,771.41-223,244.76-90,149.86

Finding the Fourth Proportional to 161,771.41, 223,244.76 and 90,149.86

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Solution

The fourth proportional to 161,771.41, 223,244.76 and 90,149.86 is: 124,406.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,771.41 : 223,244.76 = 90,149.86 : x
  2. Step 2: Convert to fraction form
    161,771.41/223,244.76 = 90,149.86/x
  3. Step 3: Cross multiply
    161,771.41x = 223,244.76 × 90,149.86
  4. Step 4: Simplify right side
    161,771.41x = 20,125,483,859.73
  5. Step 5: Solve for x
    x = 20,125,483,859.73/161,771.41
  6. Step 6: Final answer
    x = 124,406.93

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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.