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Finding the Fourth Proportional to 100,696.32, 138,964.94 and 60,395.37

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Solution

The fourth proportional to 100,696.32, 138,964.94 and 60,395.37 is: 83,348.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,696.32 : 138,964.94 = 60,395.37 : x
  2. Step 2: Convert to fraction form
    100,696.32/138,964.94 = 60,395.37/x
  3. Step 3: Cross multiply
    100,696.32x = 138,964.94 × 60,395.37
  4. Step 4: Simplify right side
    100,696.32x = 8,392,838,666.35
  5. Step 5: Solve for x
    x = 8,392,838,666.35/100,696.32
  6. Step 6: Final answer
    x = 83,348.02

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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.