Home / 109,378.40-163,630.20-94,749.80

Finding the Fourth Proportional to 109,378.40, 163,630.20 and 94,749.80

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Solution

The fourth proportional to 109,378.40, 163,630.20 and 94,749.80 is: 141,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,378.40 : 163,630.20 = 94,749.80 : x
  2. Step 2: Convert to fraction form
    109,378.40/163,630.20 = 94,749.80/x
  3. Step 3: Cross multiply
    109,378.40x = 163,630.20 × 94,749.80
  4. Step 4: Simplify right side
    109,378.40x = 15,503,928,723.96
  5. Step 5: Solve for x
    x = 15,503,928,723.96/109,378.40
  6. Step 6: Final answer
    x = 141,745.80

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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.