Home / 105,968.25-146,203.19-65,089.49

Finding the Fourth Proportional to 105,968.25, 146,203.19 and 65,089.49

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Solution

The fourth proportional to 105,968.25, 146,203.19 and 65,089.49 is: 89,803.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,968.25 : 146,203.19 = 65,089.49 : x
  2. Step 2: Convert to fraction form
    105,968.25/146,203.19 = 65,089.49/x
  3. Step 3: Cross multiply
    105,968.25x = 146,203.19 × 65,089.49
  4. Step 4: Simplify right side
    105,968.25x = 9,516,291,449.62
  5. Step 5: Solve for x
    x = 9,516,291,449.62/105,968.25
  6. Step 6: Final answer
    x = 89,803.23

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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.