Home / 205,871.20-284,037.46-115,212.76

Finding the Fourth Proportional to 205,871.20, 284,037.46 and 115,212.76

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Solution

The fourth proportional to 205,871.20, 284,037.46 and 115,212.76 is: 158,957.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,871.20 : 284,037.46 = 115,212.76 : x
  2. Step 2: Convert to fraction form
    205,871.20/284,037.46 = 115,212.76/x
  3. Step 3: Cross multiply
    205,871.20x = 284,037.46 × 115,212.76
  4. Step 4: Simplify right side
    205,871.20x = 32,724,738,711.86
  5. Step 5: Solve for x
    x = 32,724,738,711.86/205,871.20
  6. Step 6: Final answer
    x = 158,957.34

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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.