Home / 68,701.32-102,930.96-60,172.68

Finding the Fourth Proportional to 68,701.32, 102,930.96 and 60,172.68

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Solution

The fourth proportional to 68,701.32, 102,930.96 and 60,172.68 is: 90,153.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,701.32 : 102,930.96 = 60,172.68 : x
  2. Step 2: Convert to fraction form
    68,701.32/102,930.96 = 60,172.68/x
  3. Step 3: Cross multiply
    68,701.32x = 102,930.96 × 60,172.68
  4. Step 4: Simplify right side
    68,701.32x = 6,193,631,718.17
  5. Step 5: Solve for x
    x = 6,193,631,718.17/68,701.32
  6. Step 6: Final answer
    x = 90,153.02

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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.