Home / 102,640.36-153,982.14-38,598.88

Finding the Fourth Proportional to 102,640.36, 153,982.14 and 38,598.88

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Solution

The fourth proportional to 102,640.36, 153,982.14 and 38,598.88 is: 57,906.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,640.36 : 153,982.14 = 38,598.88 : x
  2. Step 2: Convert to fraction form
    102,640.36/153,982.14 = 38,598.88/x
  3. Step 3: Cross multiply
    102,640.36x = 153,982.14 × 38,598.88
  4. Step 4: Simplify right side
    102,640.36x = 5,943,538,144.00
  5. Step 5: Solve for x
    x = 5,943,538,144.00/102,640.36
  6. Step 6: Final answer
    x = 57,906.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.