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Finding the Fourth Proportional to 136,489.32, 204,733.74 and 61,635.72

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Solution

The fourth proportional to 136,489.32, 204,733.74 and 61,635.72 is: 92,453.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,489.32 : 204,733.74 = 61,635.72 : x
  2. Step 2: Convert to fraction form
    136,489.32/204,733.74 = 61,635.72/x
  3. Step 3: Cross multiply
    136,489.32x = 204,733.74 × 61,635.72
  4. Step 4: Simplify right side
    136,489.32x = 12,618,911,473.19
  5. Step 5: Solve for x
    x = 12,618,911,473.19/136,489.32
  6. Step 6: Final answer
    x = 92,453.47

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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.