Home / 168,041.02-231,790.66-100,007.20

Finding the Fourth Proportional to 168,041.02, 231,790.66 and 100,007.20

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Solution

The fourth proportional to 168,041.02, 231,790.66 and 100,007.20 is: 137,946.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,041.02 : 231,790.66 = 100,007.20 : x
  2. Step 2: Convert to fraction form
    168,041.02/231,790.66 = 100,007.20/x
  3. Step 3: Cross multiply
    168,041.02x = 231,790.66 × 100,007.20
  4. Step 4: Simplify right side
    168,041.02x = 23,180,734,892.75
  5. Step 5: Solve for x
    x = 23,180,734,892.75/168,041.02
  6. Step 6: Final answer
    x = 137,946.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.