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Finding the Fourth Proportional to 136,393.59, 204,459.17 and 69,865.05

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Solution

The fourth proportional to 136,393.59, 204,459.17 and 69,865.05 is: 104,730.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,393.59 : 204,459.17 = 69,865.05 : x
  2. Step 2: Convert to fraction form
    136,393.59/204,459.17 = 69,865.05/x
  3. Step 3: Cross multiply
    136,393.59x = 204,459.17 × 69,865.05
  4. Step 4: Simplify right side
    136,393.59x = 14,284,550,135.01
  5. Step 5: Solve for x
    x = 14,284,550,135.01/136,393.59
  6. Step 6: Final answer
    x = 104,730.36

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1.5x scale

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.