Home / 109,285.25-163,928.16-30,399.48

Finding the Fourth Proportional to 109,285.25, 163,928.16 and 30,399.48

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Solution

The fourth proportional to 109,285.25, 163,928.16 and 30,399.48 is: 45,599.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,285.25 : 163,928.16 = 30,399.48 : x
  2. Step 2: Convert to fraction form
    109,285.25/163,928.16 = 30,399.48/x
  3. Step 3: Cross multiply
    109,285.25x = 163,928.16 × 30,399.48
  4. Step 4: Simplify right side
    109,285.25x = 4,983,330,821.36
  5. Step 5: Solve for x
    x = 4,983,330,821.36/109,285.25
  6. Step 6: Final answer
    x = 45,599.30

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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.