Home / 109,640.52-151,299.63-68,826.61

Finding the Fourth Proportional to 109,640.52, 151,299.63 and 68,826.61

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Solution

The fourth proportional to 109,640.52, 151,299.63 and 68,826.61 is: 94,978.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,640.52 : 151,299.63 = 68,826.61 : x
  2. Step 2: Convert to fraction form
    109,640.52/151,299.63 = 68,826.61/x
  3. Step 3: Cross multiply
    109,640.52x = 151,299.63 × 68,826.61
  4. Step 4: Simplify right side
    109,640.52x = 10,413,440,816.28
  5. Step 5: Solve for x
    x = 10,413,440,816.28/109,640.52
  6. Step 6: Final answer
    x = 94,978.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.