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Finding the Fourth Proportional to 101,097.84, 139,367.34 and 70,787.64

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Solution

The fourth proportional to 101,097.84, 139,367.34 and 70,787.64 is: 97,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,097.84 : 139,367.34 = 70,787.64 : x
  2. Step 2: Convert to fraction form
    101,097.84/139,367.34 = 70,787.64/x
  3. Step 3: Cross multiply
    101,097.84x = 139,367.34 × 70,787.64
  4. Step 4: Simplify right side
    101,097.84x = 9,865,485,091.68
  5. Step 5: Solve for x
    x = 9,865,485,091.68/101,097.84
  6. Step 6: Final answer
    x = 97,583.54

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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.