Home / 165,740.16-228,719.36-90,287.04

Finding the Fourth Proportional to 165,740.16, 228,719.36 and 90,287.04

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Solution

The fourth proportional to 165,740.16, 228,719.36 and 90,287.04 is: 124,594.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,740.16 : 228,719.36 = 90,287.04 : x
  2. Step 2: Convert to fraction form
    165,740.16/228,719.36 = 90,287.04/x
  3. Step 3: Cross multiply
    165,740.16x = 228,719.36 × 90,287.04
  4. Step 4: Simplify right side
    165,740.16x = 20,650,394,005.09
  5. Step 5: Solve for x
    x = 20,650,394,005.09/165,740.16
  6. Step 6: Final answer
    x = 124,594.99

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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.