Home / 129,492.40-194,287.20-50,663.20

Finding the Fourth Proportional to 129,492.40, 194,287.20 and 50,663.20

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Solution

The fourth proportional to 129,492.40, 194,287.20 and 50,663.20 is: 76,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,492.40 : 194,287.20 = 50,663.20 : x
  2. Step 2: Convert to fraction form
    129,492.40/194,287.20 = 50,663.20/x
  3. Step 3: Cross multiply
    129,492.40x = 194,287.20 × 50,663.20
  4. Step 4: Simplify right side
    129,492.40x = 9,843,211,271.04
  5. Step 5: Solve for x
    x = 9,843,211,271.04/129,492.40
  6. Step 6: Final answer
    x = 76,013.81

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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.