Home / 106,317.72-159,476.94-72,936.61

Finding the Fourth Proportional to 106,317.72, 159,476.94 and 72,936.61

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Solution

The fourth proportional to 106,317.72, 159,476.94 and 72,936.61 is: 109,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,317.72 : 159,476.94 = 72,936.61 : x
  2. Step 2: Convert to fraction form
    106,317.72/159,476.94 = 72,936.61/x
  3. Step 3: Cross multiply
    106,317.72x = 159,476.94 × 72,936.61
  4. Step 4: Simplify right side
    106,317.72x = 11,631,706,214.71
  5. Step 5: Solve for x
    x = 11,631,706,214.71/106,317.72
  6. Step 6: Final answer
    x = 109,405.15

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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.