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Finding the Fourth Proportional to 136,423.53, 204,566.67 and 79,515.72

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Solution

The fourth proportional to 136,423.53, 204,566.67 and 79,515.72 is: 119,233.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,423.53 : 204,566.67 = 79,515.72 : x
  2. Step 2: Convert to fraction form
    136,423.53/204,566.67 = 79,515.72/x
  3. Step 3: Cross multiply
    136,423.53x = 204,566.67 × 79,515.72
  4. Step 4: Simplify right side
    136,423.53x = 16,266,266,053.05
  5. Step 5: Solve for x
    x = 16,266,266,053.05/136,423.53
  6. Step 6: Final answer
    x = 119,233.58

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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.