Home / 161,170.10-222,345.84-100,699.55

Finding the Fourth Proportional to 161,170.10, 222,345.84 and 100,699.55

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Solution

The fourth proportional to 161,170.10, 222,345.84 and 100,699.55 is: 138,922.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,170.10 : 222,345.84 = 100,699.55 : x
  2. Step 2: Convert to fraction form
    161,170.10/222,345.84 = 100,699.55/x
  3. Step 3: Cross multiply
    161,170.10x = 222,345.84 × 100,699.55
  4. Step 4: Simplify right side
    161,170.10x = 22,390,126,032.37
  5. Step 5: Solve for x
    x = 22,390,126,032.37/161,170.10
  6. Step 6: Final answer
    x = 138,922.33

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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.