Home / 161,887.66-223,406.18-90,272.32

Finding the Fourth Proportional to 161,887.66, 223,406.18 and 90,272.32

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Solution

The fourth proportional to 161,887.66, 223,406.18 and 90,272.32 is: 124,576.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,887.66 : 223,406.18 = 90,272.32 : x
  2. Step 2: Convert to fraction form
    161,887.66/223,406.18 = 90,272.32/x
  3. Step 3: Cross multiply
    161,887.66x = 223,406.18 × 90,272.32
  4. Step 4: Simplify right side
    161,887.66x = 20,167,394,170.94
  5. Step 5: Solve for x
    x = 20,167,394,170.94/161,887.66
  6. Step 6: Final answer
    x = 124,576.48

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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.