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Finding the Fourth Proportional to 186,102.79, 279,269.00 and 86,244.37

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Solution

The fourth proportional to 186,102.79, 279,269.00 and 86,244.37 is: 129,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,102.79 : 279,269.00 = 86,244.37 : x
  2. Step 2: Convert to fraction form
    186,102.79/279,269.00 = 86,244.37/x
  3. Step 3: Cross multiply
    186,102.79x = 279,269.00 × 86,244.37
  4. Step 4: Simplify right side
    186,102.79x = 24,085,378,159.55
  5. Step 5: Solve for x
    x = 24,085,378,159.55/186,102.79
  6. Step 6: Final answer
    x = 129,419.76

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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.