Home / 114,640.20-171,668.70-109,391.40

Finding the Fourth Proportional to 114,640.20, 171,668.70 and 109,391.40

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Solution

The fourth proportional to 114,640.20, 171,668.70 and 109,391.40 is: 163,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,640.20 : 171,668.70 = 109,391.40 : x
  2. Step 2: Convert to fraction form
    114,640.20/171,668.70 = 109,391.40/x
  3. Step 3: Cross multiply
    114,640.20x = 171,668.70 × 109,391.40
  4. Step 4: Simplify right side
    114,640.20x = 18,779,079,429.18
  5. Step 5: Solve for x
    x = 18,779,079,429.18/114,640.20
  6. Step 6: Final answer
    x = 163,808.85

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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.