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Finding the Fourth Proportional to 106,708.62, 147,248.37 and 61,374.54

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Solution

The fourth proportional to 106,708.62, 147,248.37 and 61,374.54 is: 84,691.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,708.62 : 147,248.37 = 61,374.54 : x
  2. Step 2: Convert to fraction form
    106,708.62/147,248.37 = 61,374.54/x
  3. Step 3: Cross multiply
    106,708.62x = 147,248.37 × 61,374.54
  4. Step 4: Simplify right side
    106,708.62x = 9,037,300,974.50
  5. Step 5: Solve for x
    x = 9,037,300,974.50/106,708.62
  6. Step 6: Final answer
    x = 84,691.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.