Home / 138,936.78-191,626.96-119,588.62

Finding the Fourth Proportional to 138,936.78, 191,626.96 and 119,588.62

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Solution

The fourth proportional to 138,936.78, 191,626.96 and 119,588.62 is: 164,941.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,936.78 : 191,626.96 = 119,588.62 : x
  2. Step 2: Convert to fraction form
    138,936.78/191,626.96 = 119,588.62/x
  3. Step 3: Cross multiply
    138,936.78x = 191,626.96 × 119,588.62
  4. Step 4: Simplify right side
    138,936.78x = 22,916,402,743.06
  5. Step 5: Solve for x
    x = 22,916,402,743.06/138,936.78
  6. Step 6: Final answer
    x = 164,941.23

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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.