Home / 143,961.93-198,667.68-80,303.79

Finding the Fourth Proportional to 143,961.93, 198,667.68 and 80,303.79

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Solution

The fourth proportional to 143,961.93, 198,667.68 and 80,303.79 is: 110,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,961.93 : 198,667.68 = 80,303.79 : x
  2. Step 2: Convert to fraction form
    143,961.93/198,667.68 = 80,303.79/x
  3. Step 3: Cross multiply
    143,961.93x = 198,667.68 × 80,303.79
  4. Step 4: Simplify right side
    143,961.93x = 15,953,767,654.51
  5. Step 5: Solve for x
    x = 15,953,767,654.51/143,961.93
  6. Step 6: Final answer
    x = 110,819.35

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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.