Home / 100,167.23-138,232.37-54,844.49

Finding the Fourth Proportional to 100,167.23, 138,232.37 and 54,844.49

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Solution

The fourth proportional to 100,167.23, 138,232.37 and 54,844.49 is: 75,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,167.23 : 138,232.37 = 54,844.49 : x
  2. Step 2: Convert to fraction form
    100,167.23/138,232.37 = 54,844.49/x
  3. Step 3: Cross multiply
    100,167.23x = 138,232.37 × 54,844.49
  4. Step 4: Simplify right side
    100,167.23x = 7,581,284,316.83
  5. Step 5: Solve for x
    x = 7,581,284,316.83/100,167.23
  6. Step 6: Final answer
    x = 75,686.27

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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.