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Finding the Fourth Proportional to 143,121, 214,681.52 and 44,625

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Solution

The fourth proportional to 143,121, 214,681.52 and 44,625 is: 66,937.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,121 : 214,681.52 = 44,625 : x
  2. Step 2: Convert to fraction form
    143,121/214,681.52 = 44,625/x
  3. Step 3: Cross multiply
    143,121x = 214,681.52 × 44,625
  4. Step 4: Simplify right side
    143,121x = 9,580,162,830
  5. Step 5: Solve for x
    x = 9,580,162,830/143,121
  6. Step 6: Final answer
    x = 66,937.51

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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.