Home / 221,362.29-331,846.20-81,088.11

Finding the Fourth Proportional to 221,362.29, 331,846.20 and 81,088.11

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Solution

The fourth proportional to 221,362.29, 331,846.20 and 81,088.11 is: 121,559.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,362.29 : 331,846.20 = 81,088.11 : x
  2. Step 2: Convert to fraction form
    221,362.29/331,846.20 = 81,088.11/x
  3. Step 3: Cross multiply
    221,362.29x = 331,846.20 × 81,088.11
  4. Step 4: Simplify right side
    221,362.29x = 26,908,781,168.68
  5. Step 5: Solve for x
    x = 26,908,781,168.68/221,362.29
  6. Step 6: Final answer
    x = 121,559.92

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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.