Home / 221,901.24-332,812.44-72,119.28

Finding the Fourth Proportional to 221,901.24, 332,812.44 and 72,119.28

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Solution

The fourth proportional to 221,901.24, 332,812.44 and 72,119.28 is: 108,166.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,901.24 : 332,812.44 = 72,119.28 : x
  2. Step 2: Convert to fraction form
    221,901.24/332,812.44 = 72,119.28/x
  3. Step 3: Cross multiply
    221,901.24x = 332,812.44 × 72,119.28
  4. Step 4: Simplify right side
    221,901.24x = 24,002,193,547.84
  5. Step 5: Solve for x
    x = 24,002,193,547.84/221,901.24
  6. Step 6: Final answer
    x = 108,166.11

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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.