Home / 133,145.02-199,719.24-74,354.68

Finding the Fourth Proportional to 133,145.02, 199,719.24 and 74,354.68

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Solution

The fourth proportional to 133,145.02, 199,719.24 and 74,354.68 is: 111,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,145.02 : 199,719.24 = 74,354.68 : x
  2. Step 2: Convert to fraction form
    133,145.02/199,719.24 = 74,354.68/x
  3. Step 3: Cross multiply
    133,145.02x = 199,719.24 × 74,354.68
  4. Step 4: Simplify right side
    133,145.02x = 14,850,060,180.04
  5. Step 5: Solve for x
    x = 14,850,060,180.04/133,145.02
  6. Step 6: Final answer
    x = 111,532.97

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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.