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Finding the Fourth Proportional to 119,469.85, 164,841.92 and 69,139.69

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Solution

The fourth proportional to 119,469.85, 164,841.92 and 69,139.69 is: 95,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,469.85 : 164,841.92 = 69,139.69 : x
  2. Step 2: Convert to fraction form
    119,469.85/164,841.92 = 69,139.69/x
  3. Step 3: Cross multiply
    119,469.85x = 164,841.92 × 69,139.69
  4. Step 4: Simplify right side
    119,469.85x = 11,397,118,749.28
  5. Step 5: Solve for x
    x = 11,397,118,749.28/119,469.85
  6. Step 6: Final answer
    x = 95,397.45

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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.