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Finding the Fourth Proportional to 143,134.70, 214,702.05 and 44,638.70

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Solution

The fourth proportional to 143,134.70, 214,702.05 and 44,638.70 is: 66,958.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,134.70 : 214,702.05 = 44,638.70 : x
  2. Step 2: Convert to fraction form
    143,134.70/214,702.05 = 44,638.70/x
  3. Step 3: Cross multiply
    143,134.70x = 214,702.05 × 44,638.70
  4. Step 4: Simplify right side
    143,134.70x = 9,584,019,325.82
  5. Step 5: Solve for x
    x = 9,584,019,325.82/143,134.70
  6. Step 6: Final answer
    x = 66,958.04

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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.