Home / 161,906.37-223,431.76-90,290.91

Finding the Fourth Proportional to 161,906.37, 223,431.76 and 90,290.91

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Solution

The fourth proportional to 161,906.37, 223,431.76 and 90,290.91 is: 124,602.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,906.37 : 223,431.76 = 90,290.91 : x
  2. Step 2: Convert to fraction form
    161,906.37/223,431.76 = 90,290.91/x
  3. Step 3: Cross multiply
    161,906.37x = 223,431.76 × 90,290.91
  4. Step 4: Simplify right side
    161,906.37x = 20,173,856,933.30
  5. Step 5: Solve for x
    x = 20,173,856,933.30/161,906.37
  6. Step 6: Final answer
    x = 124,602.00

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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.