Home / 101,799.12-140,617.48-84,858.80

Finding the Fourth Proportional to 101,799.12, 140,617.48 and 84,858.80

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Solution

The fourth proportional to 101,799.12, 140,617.48 and 84,858.80 is: 117,217.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,799.12 : 140,617.48 = 84,858.80 : x
  2. Step 2: Convert to fraction form
    101,799.12/140,617.48 = 84,858.80/x
  3. Step 3: Cross multiply
    101,799.12x = 140,617.48 × 84,858.80
  4. Step 4: Simplify right side
    101,799.12x = 11,932,630,611.82
  5. Step 5: Solve for x
    x = 11,932,630,611.82/101,799.12
  6. Step 6: Final answer
    x = 117,217.42

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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.