Home / 114,540.20-171,518.70-109,291.40

Finding the Fourth Proportional to 114,540.20, 171,518.70 and 109,291.40

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Solution

The fourth proportional to 114,540.20, 171,518.70 and 109,291.40 is: 163,658.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,540.20 : 171,518.70 = 109,291.40 : x
  2. Step 2: Convert to fraction form
    114,540.20/171,518.70 = 109,291.40/x
  3. Step 3: Cross multiply
    114,540.20x = 171,518.70 × 109,291.40
  4. Step 4: Simplify right side
    114,540.20x = 18,745,518,849.18
  5. Step 5: Solve for x
    x = 18,745,518,849.18/114,540.20
  6. Step 6: Final answer
    x = 163,658.86

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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.