Home / 136,960.54-189,001.98-76,531.61

Finding the Fourth Proportional to 136,960.54, 189,001.98 and 76,531.61

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Solution

The fourth proportional to 136,960.54, 189,001.98 and 76,531.61 is: 105,611.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,960.54 : 189,001.98 = 76,531.61 : x
  2. Step 2: Convert to fraction form
    136,960.54/189,001.98 = 76,531.61/x
  3. Step 3: Cross multiply
    136,960.54x = 189,001.98 × 76,531.61
  4. Step 4: Simplify right side
    136,960.54x = 14,464,626,295.09
  5. Step 5: Solve for x
    x = 14,464,626,295.09/136,960.54
  6. Step 6: Final answer
    x = 105,611.63

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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.