Home / 143,937.12-198,788.15-109,579.08

Finding the Fourth Proportional to 143,937.12, 198,788.15 and 109,579.08

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Solution

The fourth proportional to 143,937.12, 198,788.15 and 109,579.08 is: 151,337.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,937.12 : 198,788.15 = 109,579.08 : x
  2. Step 2: Convert to fraction form
    143,937.12/198,788.15 = 109,579.08/x
  3. Step 3: Cross multiply
    143,937.12x = 198,788.15 × 109,579.08
  4. Step 4: Simplify right side
    143,937.12x = 21,783,022,044.01
  5. Step 5: Solve for x
    x = 21,783,022,044.01/143,937.12
  6. Step 6: Final answer
    x = 151,337.07

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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.