Home / 155,410.20-233,115.30-66,648.60

Finding the Fourth Proportional to 155,410.20, 233,115.30 and 66,648.60

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Solution

The fourth proportional to 155,410.20, 233,115.30 and 66,648.60 is: 99,972.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,410.20 : 233,115.30 = 66,648.60 : x
  2. Step 2: Convert to fraction form
    155,410.20/233,115.30 = 66,648.60/x
  3. Step 3: Cross multiply
    155,410.20x = 233,115.30 × 66,648.60
  4. Step 4: Simplify right side
    155,410.20x = 15,536,808,383.58
  5. Step 5: Solve for x
    x = 15,536,808,383.58/155,410.20
  6. Step 6: Final answer
    x = 99,972.90

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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.