Home / 165,265.12-228,066.32-89,813.92

Finding the Fourth Proportional to 165,265.12, 228,066.32 and 89,813.92

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Solution

The fourth proportional to 165,265.12, 228,066.32 and 89,813.92 is: 123,943.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,265.12 : 228,066.32 = 89,813.92 : x
  2. Step 2: Convert to fraction form
    165,265.12/228,066.32 = 89,813.92/x
  3. Step 3: Cross multiply
    165,265.12x = 228,066.32 × 89,813.92
  4. Step 4: Simplify right side
    165,265.12x = 20,483,530,219.17
  5. Step 5: Solve for x
    x = 20,483,530,219.17/165,265.12
  6. Step 6: Final answer
    x = 123,943.46

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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.