Home / 109,890.35-164,890.20-43,332.65

Finding the Fourth Proportional to 109,890.35, 164,890.20 and 43,332.65

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Solution

The fourth proportional to 109,890.35, 164,890.20 and 43,332.65 is: 65,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890.35 : 164,890.20 = 43,332.65 : x
  2. Step 2: Convert to fraction form
    109,890.35/164,890.20 = 43,332.65/x
  3. Step 3: Cross multiply
    109,890.35x = 164,890.20 × 43,332.65
  4. Step 4: Simplify right side
    109,890.35x = 7,145,129,325.03
  5. Step 5: Solve for x
    x = 7,145,129,325.03/109,890.35
  6. Step 6: Final answer
    x = 65,020.53

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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.