Home / 213,767.12-294,926.98-123,121.28

Finding the Fourth Proportional to 213,767.12, 294,926.98 and 123,121.28

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Solution

The fourth proportional to 213,767.12, 294,926.98 and 123,121.28 is: 169,866.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,767.12 : 294,926.98 = 123,121.28 : x
  2. Step 2: Convert to fraction form
    213,767.12/294,926.98 = 123,121.28/x
  3. Step 3: Cross multiply
    213,767.12x = 294,926.98 × 123,121.28
  4. Step 4: Simplify right side
    213,767.12x = 36,311,787,284.13
  5. Step 5: Solve for x
    x = 36,311,787,284.13/213,767.12
  6. Step 6: Final answer
    x = 169,866.10

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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.