Home / 108,371.14-149,556.75-66,987.33

Finding the Fourth Proportional to 108,371.14, 149,556.75 and 66,987.33

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Solution

The fourth proportional to 108,371.14, 149,556.75 and 66,987.33 is: 92,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,371.14 : 149,556.75 = 66,987.33 : x
  2. Step 2: Convert to fraction form
    108,371.14/149,556.75 = 66,987.33/x
  3. Step 3: Cross multiply
    108,371.14x = 149,556.75 × 66,987.33
  4. Step 4: Simplify right side
    108,371.14x = 10,018,406,553.94
  5. Step 5: Solve for x
    x = 10,018,406,553.94/108,371.14
  6. Step 6: Final answer
    x = 92,445.34

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1.5x scale

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.