Home / 165,904.12-228,860.40-112,207.20

Finding the Fourth Proportional to 165,904.12, 228,860.40 and 112,207.20

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Solution

The fourth proportional to 165,904.12, 228,860.40 and 112,207.20 is: 154,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,904.12 : 228,860.40 = 112,207.20 : x
  2. Step 2: Convert to fraction form
    165,904.12/228,860.40 = 112,207.20/x
  3. Step 3: Cross multiply
    165,904.12x = 228,860.40 × 112,207.20
  4. Step 4: Simplify right side
    165,904.12x = 25,679,784,674.88
  5. Step 5: Solve for x
    x = 25,679,784,674.88/165,904.12
  6. Step 6: Final answer
    x = 154,786.90

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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.