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Finding the Fourth Proportional to 68,137.34, 102,206.04 and 30,653.64

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Solution

The fourth proportional to 68,137.34, 102,206.04 and 30,653.64 is: 45,980.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,137.34 : 102,206.04 = 30,653.64 : x
  2. Step 2: Convert to fraction form
    68,137.34/102,206.04 = 30,653.64/x
  3. Step 3: Cross multiply
    68,137.34x = 102,206.04 × 30,653.64
  4. Step 4: Simplify right side
    68,137.34x = 3,132,987,155.99
  5. Step 5: Solve for x
    x = 3,132,987,155.99/68,137.34
  6. Step 6: Final answer
    x = 45,980.47

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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.