Home / 129,629.20-194,443.80-110,602.30

Finding the Fourth Proportional to 129,629.20, 194,443.80 and 110,602.30

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Solution

The fourth proportional to 129,629.20, 194,443.80 and 110,602.30 is: 165,903.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,629.20 : 194,443.80 = 110,602.30 : x
  2. Step 2: Convert to fraction form
    129,629.20/194,443.80 = 110,602.30/x
  3. Step 3: Cross multiply
    129,629.20x = 194,443.80 × 110,602.30
  4. Step 4: Simplify right side
    129,629.20x = 21,505,931,500.74
  5. Step 5: Solve for x
    x = 21,505,931,500.74/129,629.20
  6. Step 6: Final answer
    x = 165,903.45

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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.