Home / 220,876.11-331,345.83-71,066.61

Finding the Fourth Proportional to 220,876.11, 331,345.83 and 71,066.61

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Solution

The fourth proportional to 220,876.11, 331,345.83 and 71,066.61 is: 106,610.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,876.11 : 331,345.83 = 71,066.61 : x
  2. Step 2: Convert to fraction form
    220,876.11/331,345.83 = 71,066.61/x
  3. Step 3: Cross multiply
    220,876.11x = 331,345.83 × 71,066.61
  4. Step 4: Simplify right side
    220,876.11x = 23,547,624,875.74
  5. Step 5: Solve for x
    x = 23,547,624,875.74/220,876.11
  6. Step 6: Final answer
    x = 106,610.10

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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.