Home / 161,771.91-223,245.45-90,150.36

Finding the Fourth Proportional to 161,771.91, 223,245.45 and 90,150.36

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Solution

The fourth proportional to 161,771.91, 223,245.45 and 90,150.36 is: 124,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,771.91 : 223,245.45 = 90,150.36 : x
  2. Step 2: Convert to fraction form
    161,771.91/223,245.45 = 90,150.36/x
  3. Step 3: Cross multiply
    161,771.91x = 223,245.45 × 90,150.36
  4. Step 4: Simplify right side
    161,771.91x = 20,125,657,685.86
  5. Step 5: Solve for x
    x = 20,125,657,685.86/161,771.91
  6. Step 6: Final answer
    x = 124,407.62

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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.