Home / 143,864.36-198,528.26-79,336.31

Finding the Fourth Proportional to 143,864.36, 198,528.26 and 79,336.31

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Solution

The fourth proportional to 143,864.36, 198,528.26 and 79,336.31 is: 109,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,864.36 : 198,528.26 = 79,336.31 : x
  2. Step 2: Convert to fraction form
    143,864.36/198,528.26 = 79,336.31/x
  3. Step 3: Cross multiply
    143,864.36x = 198,528.26 × 79,336.31
  4. Step 4: Simplify right side
    143,864.36x = 15,750,499,678.76
  5. Step 5: Solve for x
    x = 15,750,499,678.76/143,864.36
  6. Step 6: Final answer
    x = 109,481.60

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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.