Home / 165,717.09-228,689.73-90,265.59

Finding the Fourth Proportional to 165,717.09, 228,689.73 and 90,265.59

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Solution

The fourth proportional to 165,717.09, 228,689.73 and 90,265.59 is: 124,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,717.09 : 228,689.73 = 90,265.59 : x
  2. Step 2: Convert to fraction form
    165,717.09/228,689.73 = 90,265.59/x
  3. Step 3: Cross multiply
    165,717.09x = 228,689.73 × 90,265.59
  4. Step 4: Simplify right side
    165,717.09x = 20,642,813,405.39
  5. Step 5: Solve for x
    x = 20,642,813,405.39/165,717.09
  6. Step 6: Final answer
    x = 124,566.59

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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.