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Finding the Fourth Proportional to 103,100.96, 154,710.88 and 55,716.12

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Solution

The fourth proportional to 103,100.96, 154,710.88 and 55,716.12 is: 83,606.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,100.96 : 154,710.88 = 55,716.12 : x
  2. Step 2: Convert to fraction form
    103,100.96/154,710.88 = 55,716.12/x
  3. Step 3: Cross multiply
    103,100.96x = 154,710.88 × 55,716.12
  4. Step 4: Simplify right side
    103,100.96x = 8,619,889,955.39
  5. Step 5: Solve for x
    x = 8,619,889,955.39/103,100.96
  6. Step 6: Final answer
    x = 83,606.30

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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.