Home / 199,505.20-299,008.32-99,693.40

Finding the Fourth Proportional to 199,505.20, 299,008.32 and 99,693.40

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Solution

The fourth proportional to 199,505.20, 299,008.32 and 99,693.40 is: 149,415.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,505.20 : 299,008.32 = 99,693.40 : x
  2. Step 2: Convert to fraction form
    199,505.20/299,008.32 = 99,693.40/x
  3. Step 3: Cross multiply
    199,505.20x = 299,008.32 × 99,693.40
  4. Step 4: Simplify right side
    199,505.20x = 29,809,156,049.09
  5. Step 5: Solve for x
    x = 29,809,156,049.09/199,505.20
  6. Step 6: Final answer
    x = 149,415.43

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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.