Home / 209,521.96-288,939.28-140,766.75

Finding the Fourth Proportional to 209,521.96, 288,939.28 and 140,766.75

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Solution

The fourth proportional to 209,521.96, 288,939.28 and 140,766.75 is: 194,123.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,521.96 : 288,939.28 = 140,766.75 : x
  2. Step 2: Convert to fraction form
    209,521.96/288,939.28 = 140,766.75/x
  3. Step 3: Cross multiply
    209,521.96x = 288,939.28 × 140,766.75
  4. Step 4: Simplify right side
    209,521.96x = 40,673,043,392.94
  5. Step 5: Solve for x
    x = 40,673,043,392.94/209,521.96
  6. Step 6: Final answer
    x = 194,123.06

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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.