Home / 205,682.96-308,026.38-142,325.48

Finding the Fourth Proportional to 205,682.96, 308,026.38 and 142,325.48

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Solution

The fourth proportional to 205,682.96, 308,026.38 and 142,325.48 is: 213,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,682.96 : 308,026.38 = 142,325.48 : x
  2. Step 2: Convert to fraction form
    205,682.96/308,026.38 = 142,325.48/x
  3. Step 3: Cross multiply
    205,682.96x = 308,026.38 × 142,325.48
  4. Step 4: Simplify right side
    205,682.96x = 43,840,002,386.16
  5. Step 5: Solve for x
    x = 43,840,002,386.16/205,682.96
  6. Step 6: Final answer
    x = 213,143.58

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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.