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Finding the Fourth Proportional to 68,908.40, 103,362.60 and 60,160.40

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Solution

The fourth proportional to 68,908.40, 103,362.60 and 60,160.40 is: 90,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,908.40 : 103,362.60 = 60,160.40 : x
  2. Step 2: Convert to fraction form
    68,908.40/103,362.60 = 60,160.40/x
  3. Step 3: Cross multiply
    68,908.40x = 103,362.60 × 60,160.40
  4. Step 4: Simplify right side
    68,908.40x = 6,218,335,361.04
  5. Step 5: Solve for x
    x = 6,218,335,361.04/68,908.40
  6. Step 6: Final answer
    x = 90,240.60

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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.