Home / 153,844.70-212,232.89-100,110.11

Finding the Fourth Proportional to 153,844.70, 212,232.89 and 100,110.11

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Solution

The fourth proportional to 153,844.70, 212,232.89 and 100,110.11 is: 138,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,844.70 : 212,232.89 = 100,110.11 : x
  2. Step 2: Convert to fraction form
    153,844.70/212,232.89 = 100,110.11/x
  3. Step 3: Cross multiply
    153,844.70x = 212,232.89 × 100,110.11
  4. Step 4: Simplify right side
    153,844.70x = 21,246,657,462.97
  5. Step 5: Solve for x
    x = 21,246,657,462.97/153,844.70
  6. Step 6: Final answer
    x = 138,104.58

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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.