Home / 205,146.73-307,776.66-72,009.46

Finding the Fourth Proportional to 205,146.73, 307,776.66 and 72,009.46

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Solution

The fourth proportional to 205,146.73, 307,776.66 and 72,009.46 is: 108,034.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,146.73 : 307,776.66 = 72,009.46 : x
  2. Step 2: Convert to fraction form
    205,146.73/307,776.66 = 72,009.46/x
  3. Step 3: Cross multiply
    205,146.73x = 307,776.66 × 72,009.46
  4. Step 4: Simplify right side
    205,146.73x = 22,162,831,087.20
  5. Step 5: Solve for x
    x = 22,162,831,087.20/205,146.73
  6. Step 6: Final answer
    x = 108,034.05

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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.