Home / 106,539.57-146,943.27-66,255.03

Finding the Fourth Proportional to 106,539.57, 146,943.27 and 66,255.03

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Solution

The fourth proportional to 106,539.57, 146,943.27 and 66,255.03 is: 91,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,539.57 : 146,943.27 = 66,255.03 : x
  2. Step 2: Convert to fraction form
    106,539.57/146,943.27 = 66,255.03/x
  3. Step 3: Cross multiply
    106,539.57x = 146,943.27 × 66,255.03
  4. Step 4: Simplify right side
    106,539.57x = 9,735,730,762.15
  5. Step 5: Solve for x
    x = 9,735,730,762.15/106,539.57
  6. Step 6: Final answer
    x = 91,381.36

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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.