Home / 143,143.29-214,682.12-64,280.07

Finding the Fourth Proportional to 143,143.29, 214,682.12 and 64,280.07

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Solution

The fourth proportional to 143,143.29, 214,682.12 and 64,280.07 is: 96,405.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,143.29 : 214,682.12 = 64,280.07 : x
  2. Step 2: Convert to fraction form
    143,143.29/214,682.12 = 64,280.07/x
  3. Step 3: Cross multiply
    143,143.29x = 214,682.12 × 64,280.07
  4. Step 4: Simplify right side
    143,143.29x = 13,799,781,379.95
  5. Step 5: Solve for x
    x = 13,799,781,379.95/143,143.29
  6. Step 6: Final answer
    x = 96,405.37

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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.