Home / 102,634.49-153,954.07-81,589.07

Finding the Fourth Proportional to 102,634.49, 153,954.07 and 81,589.07

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Solution

The fourth proportional to 102,634.49, 153,954.07 and 81,589.07 is: 122,385.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,634.49 : 153,954.07 = 81,589.07 : x
  2. Step 2: Convert to fraction form
    102,634.49/153,954.07 = 81,589.07/x
  3. Step 3: Cross multiply
    102,634.49x = 153,954.07 × 81,589.07
  4. Step 4: Simplify right side
    102,634.49x = 12,560,969,574.93
  5. Step 5: Solve for x
    x = 12,560,969,574.93/102,634.49
  6. Step 6: Final answer
    x = 122,385.46

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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.