Home / 178,479.57-267,789.53-78,569.72

Finding the Fourth Proportional to 178,479.57, 267,789.53 and 78,569.72

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Solution

The fourth proportional to 178,479.57, 267,789.53 and 78,569.72 is: 117,885.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,479.57 : 267,789.53 = 78,569.72 : x
  2. Step 2: Convert to fraction form
    178,479.57/267,789.53 = 78,569.72/x
  3. Step 3: Cross multiply
    178,479.57x = 267,789.53 × 78,569.72
  4. Step 4: Simplify right side
    178,479.57x = 21,040,148,391.03
  5. Step 5: Solve for x
    x = 21,040,148,391.03/178,479.57
  6. Step 6: Final answer
    x = 117,885.47

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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.