Home / 217,338.16-325,979.55-84,127.28

Finding the Fourth Proportional to 217,338.16, 325,979.55 and 84,127.28

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Solution

The fourth proportional to 217,338.16, 325,979.55 and 84,127.28 is: 126,180.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,338.16 : 325,979.55 = 84,127.28 : x
  2. Step 2: Convert to fraction form
    217,338.16/325,979.55 = 84,127.28/x
  3. Step 3: Cross multiply
    217,338.16x = 325,979.55 × 84,127.28
  4. Step 4: Simplify right side
    217,338.16x = 27,423,772,877.12
  5. Step 5: Solve for x
    x = 27,423,772,877.12/217,338.16
  6. Step 6: Final answer
    x = 126,180.20

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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.