Home / 186,145.11-279,162.20-67,788.77

Finding the Fourth Proportional to 186,145.11, 279,162.20 and 67,788.77

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Solution

The fourth proportional to 186,145.11, 279,162.20 and 67,788.77 is: 101,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,145.11 : 279,162.20 = 67,788.77 : x
  2. Step 2: Convert to fraction form
    186,145.11/279,162.20 = 67,788.77/x
  3. Step 3: Cross multiply
    186,145.11x = 279,162.20 × 67,788.77
  4. Step 4: Simplify right side
    186,145.11x = 18,924,062,916.27
  5. Step 5: Solve for x
    x = 18,924,062,916.27/186,145.11
  6. Step 6: Final answer
    x = 101,662.96

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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.