Home / 168,153.80-231,921.02-107,730.06

Finding the Fourth Proportional to 168,153.80, 231,921.02 and 107,730.06

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Solution

The fourth proportional to 168,153.80, 231,921.02 and 107,730.06 is: 148,583.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,153.80 : 231,921.02 = 107,730.06 : x
  2. Step 2: Convert to fraction form
    168,153.80/231,921.02 = 107,730.06/x
  3. Step 3: Cross multiply
    168,153.80x = 231,921.02 × 107,730.06
  4. Step 4: Simplify right side
    168,153.80x = 24,984,866,430.18
  5. Step 5: Solve for x
    x = 24,984,866,430.18/168,153.80
  6. Step 6: Final answer
    x = 148,583.42

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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.