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Finding the Fourth Proportional to 170,886.61, 256,106.96 and 123,660.77

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Solution

The fourth proportional to 170,886.61, 256,106.96 and 123,660.77 is: 185,329.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,886.61 : 256,106.96 = 123,660.77 : x
  2. Step 2: Convert to fraction form
    170,886.61/256,106.96 = 123,660.77/x
  3. Step 3: Cross multiply
    170,886.61x = 256,106.96 × 123,660.77
  4. Step 4: Simplify right side
    170,886.61x = 31,670,383,257.66
  5. Step 5: Solve for x
    x = 31,670,383,257.66/170,886.61
  6. Step 6: Final answer
    x = 185,329.82

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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.