Home / 216,472.77-298,731.78-120,979.71

Finding the Fourth Proportional to 216,472.77, 298,731.78 and 120,979.71

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Solution

The fourth proportional to 216,472.77, 298,731.78 and 120,979.71 is: 166,951.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,472.77 : 298,731.78 = 120,979.71 : x
  2. Step 2: Convert to fraction form
    216,472.77/298,731.78 = 120,979.71/x
  3. Step 3: Cross multiply
    216,472.77x = 298,731.78 × 120,979.71
  4. Step 4: Simplify right side
    216,472.77x = 36,140,484,112.18
  5. Step 5: Solve for x
    x = 36,140,484,112.18/216,472.77
  6. Step 6: Final answer
    x = 166,951.64

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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.