Home / 118,287.14-162,821.92-103,153.10

Finding the Fourth Proportional to 118,287.14, 162,821.92 and 103,153.10

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Solution

The fourth proportional to 118,287.14, 162,821.92 and 103,153.10 is: 141,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,287.14 : 162,821.92 = 103,153.10 : x
  2. Step 2: Convert to fraction form
    118,287.14/162,821.92 = 103,153.10/x
  3. Step 3: Cross multiply
    118,287.14x = 162,821.92 × 103,153.10
  4. Step 4: Simplify right side
    118,287.14x = 16,795,585,914.78
  5. Step 5: Solve for x
    x = 16,795,585,914.78/118,287.14
  6. Step 6: Final answer
    x = 141,989.96

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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.