Home / 165,717.12-228,689.28-90,265.44

Finding the Fourth Proportional to 165,717.12, 228,689.28 and 90,265.44

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Solution

The fourth proportional to 165,717.12, 228,689.28 and 90,265.44 is: 124,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,717.12 : 228,689.28 = 90,265.44 : x
  2. Step 2: Convert to fraction form
    165,717.12/228,689.28 = 90,265.44/x
  3. Step 3: Cross multiply
    165,717.12x = 228,689.28 × 90,265.44
  4. Step 4: Simplify right side
    165,717.12x = 20,642,738,482.48
  5. Step 5: Solve for x
    x = 20,642,738,482.48/165,717.12
  6. Step 6: Final answer
    x = 124,566.12

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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.