Home / 129,820.20-194,730.30-73,602.60

Finding the Fourth Proportional to 129,820.20, 194,730.30 and 73,602.60

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Solution

The fourth proportional to 129,820.20, 194,730.30 and 73,602.60 is: 110,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,820.20 : 194,730.30 = 73,602.60 : x
  2. Step 2: Convert to fraction form
    129,820.20/194,730.30 = 73,602.60/x
  3. Step 3: Cross multiply
    129,820.20x = 194,730.30 × 73,602.60
  4. Step 4: Simplify right side
    129,820.20x = 14,332,656,378.78
  5. Step 5: Solve for x
    x = 14,332,656,378.78/129,820.20
  6. Step 6: Final answer
    x = 110,403.90

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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.