Home / 205,815.04-284,015.10-115,182.52

Finding the Fourth Proportional to 205,815.04, 284,015.10 and 115,182.52

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Solution

The fourth proportional to 205,815.04, 284,015.10 and 115,182.52 is: 158,946.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,815.04 : 284,015.10 = 115,182.52 : x
  2. Step 2: Convert to fraction form
    205,815.04/284,015.10 = 115,182.52/x
  3. Step 3: Cross multiply
    205,815.04x = 284,015.10 × 115,182.52
  4. Step 4: Simplify right side
    205,815.04x = 32,713,574,936.05
  5. Step 5: Solve for x
    x = 32,713,574,936.05/205,815.04
  6. Step 6: Final answer
    x = 158,946.47

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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.