Home / 165,851.36-228,873.12-90,398.24

Finding the Fourth Proportional to 165,851.36, 228,873.12 and 90,398.24

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Solution

The fourth proportional to 165,851.36, 228,873.12 and 90,398.24 is: 124,748.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,851.36 : 228,873.12 = 90,398.24 : x
  2. Step 2: Convert to fraction form
    165,851.36/228,873.12 = 90,398.24/x
  3. Step 3: Cross multiply
    165,851.36x = 228,873.12 × 90,398.24
  4. Step 4: Simplify right side
    165,851.36x = 20,689,727,231.31
  5. Step 5: Solve for x
    x = 20,689,727,231.31/165,851.36
  6. Step 6: Final answer
    x = 124,748.61

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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.