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Finding the Fourth Proportional to 129,984.30, 195,004.80 and 73,851.30

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Solution

The fourth proportional to 129,984.30, 195,004.80 and 73,851.30 is: 110,793.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,984.30 : 195,004.80 = 73,851.30 : x
  2. Step 2: Convert to fraction form
    129,984.30/195,004.80 = 73,851.30/x
  3. Step 3: Cross multiply
    129,984.30x = 195,004.80 × 73,851.30
  4. Step 4: Simplify right side
    129,984.30x = 14,401,357,986.24
  5. Step 5: Solve for x
    x = 14,401,357,986.24/129,984.30
  6. Step 6: Final answer
    x = 110,793.06

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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.