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Finding the Fourth Proportional to 68,884.40, 103,326.60 and 68,228.30

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Solution

The fourth proportional to 68,884.40, 103,326.60 and 68,228.30 is: 102,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,884.40 : 103,326.60 = 68,228.30 : x
  2. Step 2: Convert to fraction form
    68,884.40/103,326.60 = 68,228.30/x
  3. Step 3: Cross multiply
    68,884.40x = 103,326.60 × 68,228.30
  4. Step 4: Simplify right side
    68,884.40x = 7,049,798,262.78
  5. Step 5: Solve for x
    x = 7,049,798,262.78/68,884.40
  6. Step 6: Final answer
    x = 102,342.45

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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.