Home / 105,270.84-157,872.78-30,370.68

Finding the Fourth Proportional to 105,270.84, 157,872.78 and 30,370.68

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Solution

The fourth proportional to 105,270.84, 157,872.78 and 30,370.68 is: 45,546.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.84 : 157,872.78 = 30,370.68 : x
  2. Step 2: Convert to fraction form
    105,270.84/157,872.78 = 30,370.68/x
  3. Step 3: Cross multiply
    105,270.84x = 157,872.78 × 30,370.68
  4. Step 4: Simplify right side
    105,270.84x = 4,794,703,682.09
  5. Step 5: Solve for x
    x = 4,794,703,682.09/105,270.84
  6. Step 6: Final answer
    x = 45,546.36

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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.