Home / 198,617.15-274,088.43-107,975.40

Finding the Fourth Proportional to 198,617.15, 274,088.43 and 107,975.40

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Solution

The fourth proportional to 198,617.15, 274,088.43 and 107,975.40 is: 149,004.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,617.15 : 274,088.43 = 107,975.40 : x
  2. Step 2: Convert to fraction form
    198,617.15/274,088.43 = 107,975.40/x
  3. Step 3: Cross multiply
    198,617.15x = 274,088.43 × 107,975.40
  4. Step 4: Simplify right side
    198,617.15x = 29,594,807,864.62
  5. Step 5: Solve for x
    x = 29,594,807,864.62/198,617.15
  6. Step 6: Final answer
    x = 149,004.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.