Home / 109,734.15-164,491.05-74,690.31

Finding the Fourth Proportional to 109,734.15, 164,491.05 and 74,690.31

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Solution

The fourth proportional to 109,734.15, 164,491.05 and 74,690.31 is: 111,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,734.15 : 164,491.05 = 74,690.31 : x
  2. Step 2: Convert to fraction form
    109,734.15/164,491.05 = 74,690.31/x
  3. Step 3: Cross multiply
    109,734.15x = 164,491.05 × 74,690.31
  4. Step 4: Simplify right side
    109,734.15x = 12,285,887,516.73
  5. Step 5: Solve for x
    x = 12,285,887,516.73/109,734.15
  6. Step 6: Final answer
    x = 111,960.47

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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.