Home / 143,810.24-215,569.35-68,820.44

Finding the Fourth Proportional to 143,810.24, 215,569.35 and 68,820.44

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Solution

The fourth proportional to 143,810.24, 215,569.35 and 68,820.44 is: 103,160.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,810.24 : 215,569.35 = 68,820.44 : x
  2. Step 2: Convert to fraction form
    143,810.24/215,569.35 = 68,820.44/x
  3. Step 3: Cross multiply
    143,810.24x = 215,569.35 × 68,820.44
  4. Step 4: Simplify right side
    143,810.24x = 14,835,576,439.67
  5. Step 5: Solve for x
    x = 14,835,576,439.67/143,810.24
  6. Step 6: Final answer
    x = 103,160.78

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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.