Home / 138,132.14-190,962.01-136,869.14

Finding the Fourth Proportional to 138,132.14, 190,962.01 and 136,869.14

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Solution

The fourth proportional to 138,132.14, 190,962.01 and 136,869.14 is: 189,215.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,132.14 : 190,962.01 = 136,869.14 : x
  2. Step 2: Convert to fraction form
    138,132.14/190,962.01 = 136,869.14/x
  3. Step 3: Cross multiply
    138,132.14x = 190,962.01 × 136,869.14
  4. Step 4: Simplify right side
    138,132.14x = 26,136,805,959.97
  5. Step 5: Solve for x
    x = 26,136,805,959.97/138,132.14
  6. Step 6: Final answer
    x = 189,215.97

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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.