Home / 129,710.20-194,541.30-36,196.60

Finding the Fourth Proportional to 129,710.20, 194,541.30 and 36,196.60

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Solution

The fourth proportional to 129,710.20, 194,541.30 and 36,196.60 is: 54,288.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,710.20 : 194,541.30 = 36,196.60 : x
  2. Step 2: Convert to fraction form
    129,710.20/194,541.30 = 36,196.60/x
  3. Step 3: Cross multiply
    129,710.20x = 194,541.30 × 36,196.60
  4. Step 4: Simplify right side
    129,710.20x = 7,041,733,619.58
  5. Step 5: Solve for x
    x = 7,041,733,619.58/129,710.20
  6. Step 6: Final answer
    x = 54,288.20

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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.