Home / 143,621.90-215,531.30-50,127.66

Finding the Fourth Proportional to 143,621.90, 215,531.30 and 50,127.66

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Solution

The fourth proportional to 143,621.90, 215,531.30 and 50,127.66 is: 75,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,621.90 : 215,531.30 = 50,127.66 : x
  2. Step 2: Convert to fraction form
    143,621.90/215,531.30 = 50,127.66/x
  3. Step 3: Cross multiply
    143,621.90x = 215,531.30 × 50,127.66
  4. Step 4: Simplify right side
    143,621.90x = 10,804,079,725.76
  5. Step 5: Solve for x
    x = 10,804,079,725.76/143,621.90
  6. Step 6: Final answer
    x = 75,225.85

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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.