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Finding the Fourth Proportional to 99,958.31, 149,863.40 and 60,506.09

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Solution

The fourth proportional to 99,958.31, 149,863.40 and 60,506.09 is: 90,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,958.31 : 149,863.40 = 60,506.09 : x
  2. Step 2: Convert to fraction form
    99,958.31/149,863.40 = 60,506.09/x
  3. Step 3: Cross multiply
    99,958.31x = 149,863.40 × 60,506.09
  4. Step 4: Simplify right side
    99,958.31x = 9,067,648,065.58
  5. Step 5: Solve for x
    x = 9,067,648,065.58/99,958.31
  6. Step 6: Final answer
    x = 90,714.30

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1.5x scale

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.