Home / 165,323.10-228,170.78-100,829.75

Finding the Fourth Proportional to 165,323.10, 228,170.78 and 100,829.75

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Solution

The fourth proportional to 165,323.10, 228,170.78 and 100,829.75 is: 139,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,323.10 : 228,170.78 = 100,829.75 : x
  2. Step 2: Convert to fraction form
    165,323.10/228,170.78 = 100,829.75/x
  3. Step 3: Cross multiply
    165,323.10x = 228,170.78 × 100,829.75
  4. Step 4: Simplify right side
    165,323.10x = 23,006,402,200.56
  5. Step 5: Solve for x
    x = 23,006,402,200.56/165,323.10
  6. Step 6: Final answer
    x = 139,160.24

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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.