Home / 143,497.24-215,245.50-68,389.72

Finding the Fourth Proportional to 143,497.24, 215,245.50 and 68,389.72

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Solution

The fourth proportional to 143,497.24, 215,245.50 and 68,389.72 is: 102,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,497.24 : 215,245.50 = 68,389.72 : x
  2. Step 2: Convert to fraction form
    143,497.24/215,245.50 = 68,389.72/x
  3. Step 3: Cross multiply
    143,497.24x = 215,245.50 × 68,389.72
  4. Step 4: Simplify right side
    143,497.24x = 14,720,579,476.26
  5. Step 5: Solve for x
    x = 14,720,579,476.26/143,497.24
  6. Step 6: Final answer
    x = 102,584.41

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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.