Home / 115,052.49-158,821.44-77,348.61

Finding the Fourth Proportional to 115,052.49, 158,821.44 and 77,348.61

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Solution

The fourth proportional to 115,052.49, 158,821.44 and 77,348.61 is: 106,774.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,052.49 : 158,821.44 = 77,348.61 : x
  2. Step 2: Convert to fraction form
    115,052.49/158,821.44 = 77,348.61/x
  3. Step 3: Cross multiply
    115,052.49x = 158,821.44 × 77,348.61
  4. Step 4: Simplify right side
    115,052.49x = 12,284,617,622.20
  5. Step 5: Solve for x
    x = 12,284,617,622.20/115,052.49
  6. Step 6: Final answer
    x = 106,774.03

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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.