Home / 129,435.32-194,185.32-102,881.49

Finding the Fourth Proportional to 129,435.32, 194,185.32 and 102,881.49

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Solution

The fourth proportional to 129,435.32, 194,185.32 and 102,881.49 is: 154,347.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,435.32 : 194,185.32 = 102,881.49 : x
  2. Step 2: Convert to fraction form
    129,435.32/194,185.32 = 102,881.49/x
  3. Step 3: Cross multiply
    129,435.32x = 194,185.32 × 102,881.49
  4. Step 4: Simplify right side
    129,435.32x = 19,978,075,057.73
  5. Step 5: Solve for x
    x = 19,978,075,057.73/129,435.32
  6. Step 6: Final answer
    x = 154,347.95

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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.