Home / 217,080.12-325,731.38-103,356.62

Finding the Fourth Proportional to 217,080.12, 325,731.38 and 103,356.62

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Solution

The fourth proportional to 217,080.12, 325,731.38 and 103,356.62 is: 155,087.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,080.12 : 325,731.38 = 103,356.62 : x
  2. Step 2: Convert to fraction form
    217,080.12/325,731.38 = 103,356.62/x
  3. Step 3: Cross multiply
    217,080.12x = 325,731.38 × 103,356.62
  4. Step 4: Simplify right side
    217,080.12x = 33,666,495,373.03
  5. Step 5: Solve for x
    x = 33,666,495,373.03/217,080.12
  6. Step 6: Final answer
    x = 155,087.88

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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.