Home / 143,317.50-197,776.71-79,653.93

Finding the Fourth Proportional to 143,317.50, 197,776.71 and 79,653.93

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Solution

The fourth proportional to 143,317.50, 197,776.71 and 79,653.93 is: 109,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,317.50 : 197,776.71 = 79,653.93 : x
  2. Step 2: Convert to fraction form
    143,317.50/197,776.71 = 79,653.93/x
  3. Step 3: Cross multiply
    143,317.50x = 197,776.71 × 79,653.93
  4. Step 4: Simplify right side
    143,317.50x = 15,753,692,213.97
  5. Step 5: Solve for x
    x = 15,753,692,213.97/143,317.50
  6. Step 6: Final answer
    x = 109,921.62

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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.