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Finding the Fourth Proportional to 119,609.76, 165,072.24 and 65,905.44

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Solution

The fourth proportional to 119,609.76, 165,072.24 and 65,905.44 is: 90,955.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,609.76 : 165,072.24 = 65,905.44 : x
  2. Step 2: Convert to fraction form
    119,609.76/165,072.24 = 65,905.44/x
  3. Step 3: Cross multiply
    119,609.76x = 165,072.24 × 65,905.44
  4. Step 4: Simplify right side
    119,609.76x = 10,879,158,608.99
  5. Step 5: Solve for x
    x = 10,879,158,608.99/119,609.76
  6. Step 6: Final answer
    x = 90,955.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.