Home / 102,725.46-154,137.06-71,184.06

Finding the Fourth Proportional to 102,725.46, 154,137.06 and 71,184.06

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Solution

The fourth proportional to 102,725.46, 154,137.06 and 71,184.06 is: 106,809.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,725.46 : 154,137.06 = 71,184.06 : x
  2. Step 2: Convert to fraction form
    102,725.46/154,137.06 = 71,184.06/x
  3. Step 3: Cross multiply
    102,725.46x = 154,137.06 × 71,184.06
  4. Step 4: Simplify right side
    102,725.46x = 10,972,101,727.26
  5. Step 5: Solve for x
    x = 10,972,101,727.26/102,725.46
  6. Step 6: Final answer
    x = 106,809.95

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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.