Home / 129,530.55-194,302.74-40,790.97

Finding the Fourth Proportional to 129,530.55, 194,302.74 and 40,790.97

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Solution

The fourth proportional to 129,530.55, 194,302.74 and 40,790.97 is: 61,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,530.55 : 194,302.74 = 40,790.97 : x
  2. Step 2: Convert to fraction form
    129,530.55/194,302.74 = 40,790.97/x
  3. Step 3: Cross multiply
    129,530.55x = 194,302.74 × 40,790.97
  4. Step 4: Simplify right side
    129,530.55x = 7,925,797,238.26
  5. Step 5: Solve for x
    x = 7,925,797,238.26/129,530.55
  6. Step 6: Final answer
    x = 61,188.63

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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.