Home / 219,678.12-329,517.18-79,403.94

Finding the Fourth Proportional to 219,678.12, 329,517.18 and 79,403.94

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Solution

The fourth proportional to 219,678.12, 329,517.18 and 79,403.94 is: 119,105.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,678.12 : 329,517.18 = 79,403.94 : x
  2. Step 2: Convert to fraction form
    219,678.12/329,517.18 = 79,403.94/x
  3. Step 3: Cross multiply
    219,678.12x = 329,517.18 × 79,403.94
  4. Step 4: Simplify right side
    219,678.12x = 26,164,962,389.69
  5. Step 5: Solve for x
    x = 26,164,962,389.69/219,678.12
  6. Step 6: Final answer
    x = 119,105.91

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1.5x scale

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.