Home / 154,979.04-213,694.94-139,866.86

Finding the Fourth Proportional to 154,979.04, 213,694.94 and 139,866.86

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Solution

The fourth proportional to 154,979.04, 213,694.94 and 139,866.86 is: 192,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,979.04 : 213,694.94 = 139,866.86 : x
  2. Step 2: Convert to fraction form
    154,979.04/213,694.94 = 139,866.86/x
  3. Step 3: Cross multiply
    154,979.04x = 213,694.94 × 139,866.86
  4. Step 4: Simplify right side
    154,979.04x = 29,888,840,255.69
  5. Step 5: Solve for x
    x = 29,888,840,255.69/154,979.04
  6. Step 6: Final answer
    x = 192,857.31

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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.