Home / 165,812.12-228,755.77-102,039.20

Finding the Fourth Proportional to 165,812.12, 228,755.77 and 102,039.20

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Solution

The fourth proportional to 165,812.12, 228,755.77 and 102,039.20 is: 140,774.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,812.12 : 228,755.77 = 102,039.20 : x
  2. Step 2: Convert to fraction form
    165,812.12/228,755.77 = 102,039.20/x
  3. Step 3: Cross multiply
    165,812.12x = 228,755.77 × 102,039.20
  4. Step 4: Simplify right side
    165,812.12x = 23,342,055,225.14
  5. Step 5: Solve for x
    x = 23,342,055,225.14/165,812.12
  6. Step 6: Final answer
    x = 140,774.12

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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.