Home / 197,478.20-296,210.64-79,117.76

Finding the Fourth Proportional to 197,478.20, 296,210.64 and 79,117.76

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Solution

The fourth proportional to 197,478.20, 296,210.64 and 79,117.76 is: 118,673.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,478.20 : 296,210.64 = 79,117.76 : x
  2. Step 2: Convert to fraction form
    197,478.20/296,210.64 = 79,117.76/x
  3. Step 3: Cross multiply
    197,478.20x = 296,210.64 × 79,117.76
  4. Step 4: Simplify right side
    197,478.20x = 23,435,522,324.97
  5. Step 5: Solve for x
    x = 23,435,522,324.97/197,478.20
  6. Step 6: Final answer
    x = 118,673.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.