Home / 168,085.91-231,952.67-91,603.45

Finding the Fourth Proportional to 168,085.91, 231,952.67 and 91,603.45

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Solution

The fourth proportional to 168,085.91, 231,952.67 and 91,603.45 is: 126,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,085.91 : 231,952.67 = 91,603.45 : x
  2. Step 2: Convert to fraction form
    168,085.91/231,952.67 = 91,603.45/x
  3. Step 3: Cross multiply
    168,085.91x = 231,952.67 × 91,603.45
  4. Step 4: Simplify right side
    168,085.91x = 21,247,664,808.71
  5. Step 5: Solve for x
    x = 21,247,664,808.71/168,085.91
  6. Step 6: Final answer
    x = 126,409.55

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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.