Home / 103,069.18-154,625.84-31,990.33

Finding the Fourth Proportional to 103,069.18, 154,625.84 and 31,990.33

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Solution

The fourth proportional to 103,069.18, 154,625.84 and 31,990.33 is: 47,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,069.18 : 154,625.84 = 31,990.33 : x
  2. Step 2: Convert to fraction form
    103,069.18/154,625.84 = 31,990.33/x
  3. Step 3: Cross multiply
    103,069.18x = 154,625.84 × 31,990.33
  4. Step 4: Simplify right side
    103,069.18x = 4,946,530,715.05
  5. Step 5: Solve for x
    x = 4,946,530,715.05/103,069.18
  6. Step 6: Final answer
    x = 47,992.34

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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.