Home / 129,613.42-194,421.06-40,874.08

Finding the Fourth Proportional to 129,613.42, 194,421.06 and 40,874.08

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Solution

The fourth proportional to 129,613.42, 194,421.06 and 40,874.08 is: 61,311.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,613.42 : 194,421.06 = 40,874.08 : x
  2. Step 2: Convert to fraction form
    129,613.42/194,421.06 = 40,874.08/x
  3. Step 3: Cross multiply
    129,613.42x = 194,421.06 × 40,874.08
  4. Step 4: Simplify right side
    129,613.42x = 7,946,781,960.12
  5. Step 5: Solve for x
    x = 7,946,781,960.12/129,613.42
  6. Step 6: Final answer
    x = 61,311.41

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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.