Home / 109,020.12-163,528.56-30,132.60

Finding the Fourth Proportional to 109,020.12, 163,528.56 and 30,132.60

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Solution

The fourth proportional to 109,020.12, 163,528.56 and 30,132.60 is: 45,198.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,020.12 : 163,528.56 = 30,132.60 : x
  2. Step 2: Convert to fraction form
    109,020.12/163,528.56 = 30,132.60/x
  3. Step 3: Cross multiply
    109,020.12x = 163,528.56 × 30,132.60
  4. Step 4: Simplify right side
    109,020.12x = 4,927,540,687.06
  5. Step 5: Solve for x
    x = 4,927,540,687.06/109,020.12
  6. Step 6: Final answer
    x = 45,198.45

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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.