Home / 192,539.70-288,615.15-87,434.10

Finding the Fourth Proportional to 192,539.70, 288,615.15 and 87,434.10

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Solution

The fourth proportional to 192,539.70, 288,615.15 and 87,434.10 is: 131,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,539.70 : 288,615.15 = 87,434.10 : x
  2. Step 2: Convert to fraction form
    192,539.70/288,615.15 = 87,434.10/x
  3. Step 3: Cross multiply
    192,539.70x = 288,615.15 × 87,434.10
  4. Step 4: Simplify right side
    192,539.70x = 25,234,805,886.62
  5. Step 5: Solve for x
    x = 25,234,805,886.62/192,539.70
  6. Step 6: Final answer
    x = 131,062.87

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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.