Home / 147,910.80-221,611.05-68,862.90

Finding the Fourth Proportional to 147,910.80, 221,611.05 and 68,862.90

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Solution

The fourth proportional to 147,910.80, 221,611.05 and 68,862.90 is: 103,175.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,910.80 : 221,611.05 = 68,862.90 : x
  2. Step 2: Convert to fraction form
    147,910.80/221,611.05 = 68,862.90/x
  3. Step 3: Cross multiply
    147,910.80x = 221,611.05 × 68,862.90
  4. Step 4: Simplify right side
    147,910.80x = 15,260,779,575.05
  5. Step 5: Solve for x
    x = 15,260,779,575.05/147,910.80
  6. Step 6: Final answer
    x = 103,175.56

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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.