Home / 140,838.92-211,116.22-88,285.31

Finding the Fourth Proportional to 140,838.92, 211,116.22 and 88,285.31

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Solution

The fourth proportional to 140,838.92, 211,116.22 and 88,285.31 is: 132,338.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,838.92 : 211,116.22 = 88,285.31 : x
  2. Step 2: Convert to fraction form
    140,838.92/211,116.22 = 88,285.31/x
  3. Step 3: Cross multiply
    140,838.92x = 211,116.22 × 88,285.31
  4. Step 4: Simplify right side
    140,838.92x = 18,638,459,652.43
  5. Step 5: Solve for x
    x = 18,638,459,652.43/140,838.92
  6. Step 6: Final answer
    x = 132,338.85

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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.