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Finding the Fourth Proportional to 143,702.55, 215,185.78 and 119,951.04

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Solution

The fourth proportional to 143,702.55, 215,185.78 and 119,951.04 is: 179,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,702.55 : 215,185.78 = 119,951.04 : x
  2. Step 2: Convert to fraction form
    143,702.55/215,185.78 = 119,951.04/x
  3. Step 3: Cross multiply
    143,702.55x = 215,185.78 × 119,951.04
  4. Step 4: Simplify right side
    143,702.55x = 25,811,758,104.21
  5. Step 5: Solve for x
    x = 25,811,758,104.21/143,702.55
  6. Step 6: Final answer
    x = 179,619.35

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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.