Home / 165,380.13-228,247.65-100,842.57

Finding the Fourth Proportional to 165,380.13, 228,247.65 and 100,842.57

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Solution

The fourth proportional to 165,380.13, 228,247.65 and 100,842.57 is: 139,176.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,380.13 : 228,247.65 = 100,842.57 : x
  2. Step 2: Convert to fraction form
    165,380.13/228,247.65 = 100,842.57/x
  3. Step 3: Cross multiply
    165,380.13x = 228,247.65 × 100,842.57
  4. Step 4: Simplify right side
    165,380.13x = 23,017,079,622.46
  5. Step 5: Solve for x
    x = 23,017,079,622.46/165,380.13
  6. Step 6: Final answer
    x = 139,176.81

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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.