Home / 117,743.70-162,914.19-102,667.80

Finding the Fourth Proportional to 117,743.70, 162,914.19 and 102,667.80

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Solution

The fourth proportional to 117,743.70, 162,914.19 and 102,667.80 is: 142,054.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,743.70 : 162,914.19 = 102,667.80 : x
  2. Step 2: Convert to fraction form
    117,743.70/162,914.19 = 102,667.80/x
  3. Step 3: Cross multiply
    117,743.70x = 162,914.19 × 102,667.80
  4. Step 4: Simplify right side
    117,743.70x = 16,726,041,476.08
  5. Step 5: Solve for x
    x = 16,726,041,476.08/117,743.70
  6. Step 6: Final answer
    x = 142,054.66

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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.