Home / 99,660.40-149,439.30-29,530.60

Finding the Fourth Proportional to 99,660.40, 149,439.30 and 29,530.60

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Solution

The fourth proportional to 99,660.40, 149,439.30 and 29,530.60 is: 44,280.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,660.40 : 149,439.30 = 29,530.60 : x
  2. Step 2: Convert to fraction form
    99,660.40/149,439.30 = 29,530.60/x
  3. Step 3: Cross multiply
    99,660.40x = 149,439.30 × 29,530.60
  4. Step 4: Simplify right side
    99,660.40x = 4,413,032,192.58
  5. Step 5: Solve for x
    x = 4,413,032,192.58/99,660.40
  6. Step 6: Final answer
    x = 44,280.70

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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.