Home / 231,155.29-346,634.52-90,815.50

Finding the Fourth Proportional to 231,155.29, 346,634.52 and 90,815.50

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Solution

The fourth proportional to 231,155.29, 346,634.52 and 90,815.50 is: 136,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,155.29 : 346,634.52 = 90,815.50 : x
  2. Step 2: Convert to fraction form
    231,155.29/346,634.52 = 90,815.50/x
  3. Step 3: Cross multiply
    231,155.29x = 346,634.52 × 90,815.50
  4. Step 4: Simplify right side
    231,155.29x = 31,479,787,251.06
  5. Step 5: Solve for x
    x = 31,479,787,251.06/231,155.29
  6. Step 6: Final answer
    x = 136,184.59

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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.