Home / 136,479.26-204,738-47,712.57

Finding the Fourth Proportional to 136,479.26, 204,738 and 47,712.57

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Solution

The fourth proportional to 136,479.26, 204,738 and 47,712.57 is: 71,575.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,479.26 : 204,738 = 47,712.57 : x
  2. Step 2: Convert to fraction form
    136,479.26/204,738 = 47,712.57/x
  3. Step 3: Cross multiply
    136,479.26x = 204,738 × 47,712.57
  4. Step 4: Simplify right side
    136,479.26x = 9,768,576,156.66
  5. Step 5: Solve for x
    x = 9,768,576,156.66/136,479.26
  6. Step 6: Final answer
    x = 71,575.54

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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.