Home / 103,630.67-155,445.99-68,562.14

Finding the Fourth Proportional to 103,630.67, 155,445.99 and 68,562.14

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Solution

The fourth proportional to 103,630.67, 155,445.99 and 68,562.14 is: 102,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,630.67 : 155,445.99 = 68,562.14 : x
  2. Step 2: Convert to fraction form
    103,630.67/155,445.99 = 68,562.14/x
  3. Step 3: Cross multiply
    103,630.67x = 155,445.99 × 68,562.14
  4. Step 4: Simplify right side
    103,630.67x = 10,657,709,728.82
  5. Step 5: Solve for x
    x = 10,657,709,728.82/103,630.67
  6. Step 6: Final answer
    x = 102,843.20

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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.