Home / 221,941.96-332,946.12-81,689.92

Finding the Fourth Proportional to 221,941.96, 332,946.12 and 81,689.92

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Solution

The fourth proportional to 221,941.96, 332,946.12 and 81,689.92 is: 122,547.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,941.96 : 332,946.12 = 81,689.92 : x
  2. Step 2: Convert to fraction form
    221,941.96/332,946.12 = 81,689.92/x
  3. Step 3: Cross multiply
    221,941.96x = 332,946.12 × 81,689.92
  4. Step 4: Simplify right side
    221,941.96x = 27,198,341,907.11
  5. Step 5: Solve for x
    x = 27,198,341,907.11/221,941.96
  6. Step 6: Final answer
    x = 122,547.09

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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.