Home / 219,669.40-329,066.70-126,065.80

Finding the Fourth Proportional to 219,669.40, 329,066.70 and 126,065.80

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Solution

The fourth proportional to 219,669.40, 329,066.70 and 126,065.80 is: 188,847.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,669.40 : 329,066.70 = 126,065.80 : x
  2. Step 2: Convert to fraction form
    219,669.40/329,066.70 = 126,065.80/x
  3. Step 3: Cross multiply
    219,669.40x = 329,066.70 × 126,065.80
  4. Step 4: Simplify right side
    219,669.40x = 41,484,056,788.86
  5. Step 5: Solve for x
    x = 41,484,056,788.86/219,669.40
  6. Step 6: Final answer
    x = 188,847.68

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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.