Home / 145,847.20-218,795.10-57,103.60

Finding the Fourth Proportional to 145,847.20, 218,795.10 and 57,103.60

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Solution

The fourth proportional to 145,847.20, 218,795.10 and 57,103.60 is: 85,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,847.20 : 218,795.10 = 57,103.60 : x
  2. Step 2: Convert to fraction form
    145,847.20/218,795.10 = 57,103.60/x
  3. Step 3: Cross multiply
    145,847.20x = 218,795.10 × 57,103.60
  4. Step 4: Simplify right side
    145,847.20x = 12,493,987,872.36
  5. Step 5: Solve for x
    x = 12,493,987,872.36/145,847.20
  6. Step 6: Final answer
    x = 85,664.91

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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.