Home / 143,302.31-214,953.20-38,121.28

Finding the Fourth Proportional to 143,302.31, 214,953.20 and 38,121.28

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Solution

The fourth proportional to 143,302.31, 214,953.20 and 38,121.28 is: 57,181.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,302.31 : 214,953.20 = 38,121.28 : x
  2. Step 2: Convert to fraction form
    143,302.31/214,953.20 = 38,121.28/x
  3. Step 3: Cross multiply
    143,302.31x = 214,953.20 × 38,121.28
  4. Step 4: Simplify right side
    143,302.31x = 8,194,290,682.02
  5. Step 5: Solve for x
    x = 8,194,290,682.02/143,302.31
  6. Step 6: Final answer
    x = 57,181.85

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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.