Home / 105,900.36-146,168.94-65,589.96

Finding the Fourth Proportional to 105,900.36, 146,168.94 and 65,589.96

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Solution

The fourth proportional to 105,900.36, 146,168.94 and 65,589.96 is: 90,530.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,900.36 : 146,168.94 = 65,589.96 : x
  2. Step 2: Convert to fraction form
    105,900.36/146,168.94 = 65,589.96/x
  3. Step 3: Cross multiply
    105,900.36x = 146,168.94 × 65,589.96
  4. Step 4: Simplify right side
    105,900.36x = 9,587,214,927.84
  5. Step 5: Solve for x
    x = 9,587,214,927.84/105,900.36
  6. Step 6: Final answer
    x = 90,530.52

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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.