Home / 154,142.48-231,254.04-65,399.60

Finding the Fourth Proportional to 154,142.48, 231,254.04 and 65,399.60

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Solution

The fourth proportional to 154,142.48, 231,254.04 and 65,399.60 is: 98,116.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,142.48 : 231,254.04 = 65,399.60 : x
  2. Step 2: Convert to fraction form
    154,142.48/231,254.04 = 65,399.60/x
  3. Step 3: Cross multiply
    154,142.48x = 231,254.04 × 65,399.60
  4. Step 4: Simplify right side
    154,142.48x = 15,123,921,714.38
  5. Step 5: Solve for x
    x = 15,123,921,714.38/154,142.48
  6. Step 6: Final answer
    x = 98,116.51

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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.