Home / 103,942.97-143,441.65-56,196.66

Finding the Fourth Proportional to 103,942.97, 143,441.65 and 56,196.66

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Solution

The fourth proportional to 103,942.97, 143,441.65 and 56,196.66 is: 77,551.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,942.97 : 143,441.65 = 56,196.66 : x
  2. Step 2: Convert to fraction form
    103,942.97/143,441.65 = 56,196.66/x
  3. Step 3: Cross multiply
    103,942.97x = 143,441.65 × 56,196.66
  4. Step 4: Simplify right side
    103,942.97x = 8,060,940,636.70
  5. Step 5: Solve for x
    x = 8,060,940,636.70/103,942.97
  6. Step 6: Final answer
    x = 77,551.57

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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.