Home / 245,912.43-368,795.75-105,638.25

Finding the Fourth Proportional to 245,912.43, 368,795.75 and 105,638.25

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Solution

The fourth proportional to 245,912.43, 368,795.75 and 105,638.25 is: 158,426.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,912.43 : 368,795.75 = 105,638.25 : x
  2. Step 2: Convert to fraction form
    245,912.43/368,795.75 = 105,638.25/x
  3. Step 3: Cross multiply
    245,912.43x = 368,795.75 × 105,638.25
  4. Step 4: Simplify right side
    245,912.43x = 38,958,937,109.25
  5. Step 5: Solve for x
    x = 38,958,937,109.25/245,912.43
  6. Step 6: Final answer
    x = 158,426.06

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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.