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Finding the Fourth Proportional to 68,109.66, 102,150.45 and 25,980.26

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Solution

The fourth proportional to 68,109.66, 102,150.45 and 25,980.26 is: 38,965.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,109.66 : 102,150.45 = 25,980.26 : x
  2. Step 2: Convert to fraction form
    68,109.66/102,150.45 = 25,980.26/x
  3. Step 3: Cross multiply
    68,109.66x = 102,150.45 × 25,980.26
  4. Step 4: Simplify right side
    68,109.66x = 2,653,894,739.36
  5. Step 5: Solve for x
    x = 2,653,894,739.36/68,109.66
  6. Step 6: Final answer
    x = 38,965.03

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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.