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Finding the Fourth Proportional to 122,727, 169,364.26 and 69,011.54

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Solution

The fourth proportional to 122,727, 169,364.26 and 69,011.54 is: 95,236.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,727 : 169,364.26 = 69,011.54 : x
  2. Step 2: Convert to fraction form
    122,727/169,364.26 = 69,011.54/x
  3. Step 3: Cross multiply
    122,727x = 169,364.26 × 69,011.54
  4. Step 4: Simplify right side
    122,727x = 11,688,088,403.56
  5. Step 5: Solve for x
    x = 11,688,088,403.56/122,727
  6. Step 6: Final answer
    x = 95,236.49

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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.