Home / 109,661.12-164,272.40-50,415.60

Finding the Fourth Proportional to 109,661.12, 164,272.40 and 50,415.60

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Solution

The fourth proportional to 109,661.12, 164,272.40 and 50,415.60 is: 75,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,661.12 : 164,272.40 = 50,415.60 : x
  2. Step 2: Convert to fraction form
    109,661.12/164,272.40 = 50,415.60/x
  3. Step 3: Cross multiply
    109,661.12x = 164,272.40 × 50,415.60
  4. Step 4: Simplify right side
    109,661.12x = 8,281,891,609.44
  5. Step 5: Solve for x
    x = 8,281,891,609.44/109,661.12
  6. Step 6: Final answer
    x = 75,522.59

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1.5x scale

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.