Home / 104,140.71-143,606.67-89,083.22

Finding the Fourth Proportional to 104,140.71, 143,606.67 and 89,083.22

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Solution

The fourth proportional to 104,140.71, 143,606.67 and 89,083.22 is: 122,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,140.71 : 143,606.67 = 89,083.22 : x
  2. Step 2: Convert to fraction form
    104,140.71/143,606.67 = 89,083.22/x
  3. Step 3: Cross multiply
    104,140.71x = 143,606.67 × 89,083.22
  4. Step 4: Simplify right side
    104,140.71x = 12,792,943,524.98
  5. Step 5: Solve for x
    x = 12,792,943,524.98/104,140.71
  6. Step 6: Final answer
    x = 122,842.87

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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.