Home / 145,150.20-217,652.40-66,175.20

Finding the Fourth Proportional to 145,150.20, 217,652.40 and 66,175.20

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Solution

The fourth proportional to 145,150.20, 217,652.40 and 66,175.20 is: 99,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,150.20 : 217,652.40 = 66,175.20 : x
  2. Step 2: Convert to fraction form
    145,150.20/217,652.40 = 66,175.20/x
  3. Step 3: Cross multiply
    145,150.20x = 217,652.40 × 66,175.20
  4. Step 4: Simplify right side
    145,150.20x = 14,403,191,100.48
  5. Step 5: Solve for x
    x = 14,403,191,100.48/145,150.20
  6. Step 6: Final answer
    x = 99,229.56

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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.