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Finding the Fourth Proportional to 136,313.61, 204,512.12 and 69,800.80

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Solution

The fourth proportional to 136,313.61, 204,512.12 and 69,800.80 is: 104,722.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,313.61 : 204,512.12 = 69,800.80 : x
  2. Step 2: Convert to fraction form
    136,313.61/204,512.12 = 69,800.80/x
  3. Step 3: Cross multiply
    136,313.61x = 204,512.12 × 69,800.80
  4. Step 4: Simplify right side
    136,313.61x = 14,275,109,585.70
  5. Step 5: Solve for x
    x = 14,275,109,585.70/136,313.61
  6. Step 6: Final answer
    x = 104,722.56

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1.5x scale

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.