Home / 165,310.60-228,128.78-89,859.10

Finding the Fourth Proportional to 165,310.60, 228,128.78 and 89,859.10

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Solution

The fourth proportional to 165,310.60, 228,128.78 and 89,859.10 is: 124,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,310.60 : 228,128.78 = 89,859.10 : x
  2. Step 2: Convert to fraction form
    165,310.60/228,128.78 = 89,859.10/x
  3. Step 3: Cross multiply
    165,310.60x = 228,128.78 × 89,859.10
  4. Step 4: Simplify right side
    165,310.60x = 20,499,445,835.28
  5. Step 5: Solve for x
    x = 20,499,445,835.28/165,310.60
  6. Step 6: Final answer
    x = 124,005.64

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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.