Home / 161,965.85-223,512.72-90,345.83

Finding the Fourth Proportional to 161,965.85, 223,512.72 and 90,345.83

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Solution

The fourth proportional to 161,965.85, 223,512.72 and 90,345.83 is: 124,677.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,965.85 : 223,512.72 = 90,345.83 : x
  2. Step 2: Convert to fraction form
    161,965.85/223,512.72 = 90,345.83/x
  3. Step 3: Cross multiply
    161,965.85x = 223,512.72 × 90,345.83
  4. Step 4: Simplify right side
    161,965.85x = 20,193,442,203.96
  5. Step 5: Solve for x
    x = 20,193,442,203.96/161,965.85
  6. Step 6: Final answer
    x = 124,677.16

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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.