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Finding the Fourth Proportional to 136,310.61, 204,507.62 and 69,797.80

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Solution

The fourth proportional to 136,310.61, 204,507.62 and 69,797.80 is: 104,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,310.61 : 204,507.62 = 69,797.80 : x
  2. Step 2: Convert to fraction form
    136,310.61/204,507.62 = 69,797.80/x
  3. Step 3: Cross multiply
    136,310.61x = 204,507.62 × 69,797.80
  4. Step 4: Simplify right side
    136,310.61x = 14,274,182,127.62
  5. Step 5: Solve for x
    x = 14,274,182,127.62/136,310.61
  6. Step 6: Final answer
    x = 104,718.05

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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.