Home / 105,163.48-144,974.84-64,850.16

Finding the Fourth Proportional to 105,163.48, 144,974.84 and 64,850.16

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Solution

The fourth proportional to 105,163.48, 144,974.84 and 64,850.16 is: 89,400.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,163.48 : 144,974.84 = 64,850.16 : x
  2. Step 2: Convert to fraction form
    105,163.48/144,974.84 = 64,850.16/x
  3. Step 3: Cross multiply
    105,163.48x = 144,974.84 × 64,850.16
  4. Step 4: Simplify right side
    105,163.48x = 9,401,641,569.97
  5. Step 5: Solve for x
    x = 9,401,641,569.97/105,163.48
  6. Step 6: Final answer
    x = 89,400.25

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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.