Home / 106,539.48-146,969.58-66,237.96

Finding the Fourth Proportional to 106,539.48, 146,969.58 and 66,237.96

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Solution

The fourth proportional to 106,539.48, 146,969.58 and 66,237.96 is: 91,374.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,539.48 : 146,969.58 = 66,237.96 : x
  2. Step 2: Convert to fraction form
    106,539.48/146,969.58 = 66,237.96/x
  3. Step 3: Cross multiply
    106,539.48x = 146,969.58 × 66,237.96
  4. Step 4: Simplify right side
    106,539.48x = 9,734,965,161.26
  5. Step 5: Solve for x
    x = 9,734,965,161.26/106,539.48
  6. Step 6: Final answer
    x = 91,374.25

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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.