Home / 104,689.38-144,398.16-68,867.94

Finding the Fourth Proportional to 104,689.38, 144,398.16 and 68,867.94

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Solution

The fourth proportional to 104,689.38, 144,398.16 and 68,867.94 is: 94,989.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,689.38 : 144,398.16 = 68,867.94 : x
  2. Step 2: Convert to fraction form
    104,689.38/144,398.16 = 68,867.94/x
  3. Step 3: Cross multiply
    104,689.38x = 144,398.16 × 68,867.94
  4. Step 4: Simplify right side
    104,689.38x = 9,944,403,818.99
  5. Step 5: Solve for x
    x = 9,944,403,818.99/104,689.38
  6. Step 6: Final answer
    x = 94,989.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.