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Finding the Fourth Proportional to 139,096.84, 208,645.26 and 65,207.56

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Solution

The fourth proportional to 139,096.84, 208,645.26 and 65,207.56 is: 97,811.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,096.84 : 208,645.26 = 65,207.56 : x
  2. Step 2: Convert to fraction form
    139,096.84/208,645.26 = 65,207.56/x
  3. Step 3: Cross multiply
    139,096.84x = 208,645.26 × 65,207.56
  4. Step 4: Simplify right side
    139,096.84x = 13,605,248,310.17
  5. Step 5: Solve for x
    x = 13,605,248,310.17/139,096.84
  6. Step 6: Final answer
    x = 97,811.34

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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.