Home / 68,106.32-102,159.14-17,505.30

Finding the Fourth Proportional to 68,106.32, 102,159.14 and 17,505.30

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Solution

The fourth proportional to 68,106.32, 102,159.14 and 17,505.30 is: 26,257.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,106.32 : 102,159.14 = 17,505.30 : x
  2. Step 2: Convert to fraction form
    68,106.32/102,159.14 = 17,505.30/x
  3. Step 3: Cross multiply
    68,106.32x = 102,159.14 × 17,505.30
  4. Step 4: Simplify right side
    68,106.32x = 1,788,326,393.44
  5. Step 5: Solve for x
    x = 1,788,326,393.44/68,106.32
  6. Step 6: Final answer
    x = 26,257.86

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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.