Home / 152,799.22-229,245.75-72,939.09

Finding the Fourth Proportional to 152,799.22, 229,245.75 and 72,939.09

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Solution

The fourth proportional to 152,799.22, 229,245.75 and 72,939.09 is: 109,431.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,799.22 : 229,245.75 = 72,939.09 : x
  2. Step 2: Convert to fraction form
    152,799.22/229,245.75 = 72,939.09/x
  3. Step 3: Cross multiply
    152,799.22x = 229,245.75 × 72,939.09
  4. Step 4: Simplify right side
    152,799.22x = 16,720,975,635.91
  5. Step 5: Solve for x
    x = 16,720,975,635.91/152,799.22
  6. Step 6: Final answer
    x = 109,431.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.