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Finding the Fourth Proportional to 142,504.49, 213,636 and 62,481.81

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Solution

The fourth proportional to 142,504.49, 213,636 and 62,481.81 is: 93,669.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,504.49 : 213,636 = 62,481.81 : x
  2. Step 2: Convert to fraction form
    142,504.49/213,636 = 62,481.81/x
  3. Step 3: Cross multiply
    142,504.49x = 213,636 × 62,481.81
  4. Step 4: Simplify right side
    142,504.49x = 13,348,363,961.16
  5. Step 5: Solve for x
    x = 13,348,363,961.16/142,504.49
  6. Step 6: Final answer
    x = 93,669.78

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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.