Home / 105,634.32-158,461.80-30,755.20

Finding the Fourth Proportional to 105,634.32, 158,461.80 and 30,755.20

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Solution

The fourth proportional to 105,634.32, 158,461.80 and 30,755.20 is: 46,135.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,634.32 : 158,461.80 = 30,755.20 : x
  2. Step 2: Convert to fraction form
    105,634.32/158,461.80 = 30,755.20/x
  3. Step 3: Cross multiply
    105,634.32x = 158,461.80 × 30,755.20
  4. Step 4: Simplify right side
    105,634.32x = 4,873,524,351.36
  5. Step 5: Solve for x
    x = 4,873,524,351.36/105,634.32
  6. Step 6: Final answer
    x = 46,135.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.