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Finding the Fourth Proportional to 68,145.90, 102,024.45 and 60,369.90

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Solution

The fourth proportional to 68,145.90, 102,024.45 and 60,369.90 is: 90,382.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,145.90 : 102,024.45 = 60,369.90 : x
  2. Step 2: Convert to fraction form
    68,145.90/102,024.45 = 60,369.90/x
  3. Step 3: Cross multiply
    68,145.90x = 102,024.45 × 60,369.90
  4. Step 4: Simplify right side
    68,145.90x = 6,159,205,844.06
  5. Step 5: Solve for x
    x = 6,159,205,844.06/68,145.90
  6. Step 6: Final answer
    x = 90,382.63

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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.