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Finding the Fourth Proportional to 136,348.90, 204,565.03 and 69,836.09

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Solution

The fourth proportional to 136,348.90, 204,565.03 and 69,836.09 is: 104,775.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,348.90 : 204,565.03 = 69,836.09 : x
  2. Step 2: Convert to fraction form
    136,348.90/204,565.03 = 69,836.09/x
  3. Step 3: Cross multiply
    136,348.90x = 204,565.03 × 69,836.09
  4. Step 4: Simplify right side
    136,348.90x = 14,286,020,648.52
  5. Step 5: Solve for x
    x = 14,286,020,648.52/136,348.90
  6. Step 6: Final answer
    x = 104,775.48

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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.