Home / 128,419.65-192,581.58-44,155.98

Finding the Fourth Proportional to 128,419.65, 192,581.58 and 44,155.98

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Solution

The fourth proportional to 128,419.65, 192,581.58 and 44,155.98 is: 66,217.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,419.65 : 192,581.58 = 44,155.98 : x
  2. Step 2: Convert to fraction form
    128,419.65/192,581.58 = 44,155.98/x
  3. Step 3: Cross multiply
    128,419.65x = 192,581.58 × 44,155.98
  4. Step 4: Simplify right side
    128,419.65x = 8,503,628,394.85
  5. Step 5: Solve for x
    x = 8,503,628,394.85/128,419.65
  6. Step 6: Final answer
    x = 66,217.50

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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.