Home / 161,293.68-222,515.64-100,758.96

Finding the Fourth Proportional to 161,293.68, 222,515.64 and 100,758.96

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Solution

The fourth proportional to 161,293.68, 222,515.64 and 100,758.96 is: 139,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,293.68 : 222,515.64 = 100,758.96 : x
  2. Step 2: Convert to fraction form
    161,293.68/222,515.64 = 100,758.96/x
  3. Step 3: Cross multiply
    161,293.68x = 222,515.64 × 100,758.96
  4. Step 4: Simplify right side
    161,293.68x = 22,420,444,470.13
  5. Step 5: Solve for x
    x = 22,420,444,470.13/161,293.68
  6. Step 6: Final answer
    x = 139,003.86

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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.