Home / 100,279.36-138,381.24-59,969.26

Finding the Fourth Proportional to 100,279.36, 138,381.24 and 59,969.26

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Solution

The fourth proportional to 100,279.36, 138,381.24 and 59,969.26 is: 82,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,279.36 : 138,381.24 = 59,969.26 : x
  2. Step 2: Convert to fraction form
    100,279.36/138,381.24 = 59,969.26/x
  3. Step 3: Cross multiply
    100,279.36x = 138,381.24 × 59,969.26
  4. Step 4: Simplify right side
    100,279.36x = 8,298,620,560.68
  5. Step 5: Solve for x
    x = 8,298,620,560.68/100,279.36
  6. Step 6: Final answer
    x = 82,755.02

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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.