Home / 106,317.75-159,476.93-72,936.64

Finding the Fourth Proportional to 106,317.75, 159,476.93 and 72,936.64

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Solution

The fourth proportional to 106,317.75, 159,476.93 and 72,936.64 is: 109,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,317.75 : 159,476.93 = 72,936.64 : x
  2. Step 2: Convert to fraction form
    106,317.75/159,476.93 = 72,936.64/x
  3. Step 3: Cross multiply
    106,317.75x = 159,476.93 × 72,936.64
  4. Step 4: Simplify right side
    106,317.75x = 11,631,711,431.72
  5. Step 5: Solve for x
    x = 11,631,711,431.72/106,317.75
  6. Step 6: Final answer
    x = 109,405.17

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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.