Home / 109,327.12-163,990.80-30,441.52

Finding the Fourth Proportional to 109,327.12, 163,990.80 and 30,441.52

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Solution

The fourth proportional to 109,327.12, 163,990.80 and 30,441.52 is: 45,662.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,327.12 : 163,990.80 = 30,441.52 : x
  2. Step 2: Convert to fraction form
    109,327.12/163,990.80 = 30,441.52/x
  3. Step 3: Cross multiply
    109,327.12x = 163,990.80 × 30,441.52
  4. Step 4: Simplify right side
    109,327.12x = 4,992,129,218.02
  5. Step 5: Solve for x
    x = 4,992,129,218.02/109,327.12
  6. Step 6: Final answer
    x = 45,662.31

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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.