Home / 130,538.20-195,653.70-68,176.60

Finding the Fourth Proportional to 130,538.20, 195,653.70 and 68,176.60

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Solution

The fourth proportional to 130,538.20, 195,653.70 and 68,176.60 is: 102,184.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,538.20 : 195,653.70 = 68,176.60 : x
  2. Step 2: Convert to fraction form
    130,538.20/195,653.70 = 68,176.60/x
  3. Step 3: Cross multiply
    130,538.20x = 195,653.70 × 68,176.60
  4. Step 4: Simplify right side
    130,538.20x = 13,339,004,043.42
  5. Step 5: Solve for x
    x = 13,339,004,043.42/130,538.20
  6. Step 6: Final answer
    x = 102,184.68

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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.