Home / 102,517.61-153,799-31,450.04

Finding the Fourth Proportional to 102,517.61, 153,799 and 31,450.04

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Solution

The fourth proportional to 102,517.61, 153,799 and 31,450.04 is: 47,181.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,517.61 : 153,799 = 31,450.04 : x
  2. Step 2: Convert to fraction form
    102,517.61/153,799 = 31,450.04/x
  3. Step 3: Cross multiply
    102,517.61x = 153,799 × 31,450.04
  4. Step 4: Simplify right side
    102,517.61x = 4,836,984,701.96
  5. Step 5: Solve for x
    x = 4,836,984,701.96/102,517.61
  6. Step 6: Final answer
    x = 47,181.99

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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.