Home / 129,659.74-194,563.38-103,530.52

Finding the Fourth Proportional to 129,659.74, 194,563.38 and 103,530.52

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Solution

The fourth proportional to 129,659.74, 194,563.38 and 103,530.52 is: 155,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,659.74 : 194,563.38 = 103,530.52 : x
  2. Step 2: Convert to fraction form
    129,659.74/194,563.38 = 103,530.52/x
  3. Step 3: Cross multiply
    129,659.74x = 194,563.38 × 103,530.52
  4. Step 4: Simplify right side
    129,659.74x = 20,143,247,904.36
  5. Step 5: Solve for x
    x = 20,143,247,904.36/129,659.74
  6. Step 6: Final answer
    x = 155,354.68

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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.