Home / 143,169.93-197,580.47-79,508.25

Finding the Fourth Proportional to 143,169.93, 197,580.47 and 79,508.25

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Solution

The fourth proportional to 143,169.93, 197,580.47 and 79,508.25 is: 109,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,169.93 : 197,580.47 = 79,508.25 : x
  2. Step 2: Convert to fraction form
    143,169.93/197,580.47 = 79,508.25/x
  3. Step 3: Cross multiply
    143,169.93x = 197,580.47 × 79,508.25
  4. Step 4: Simplify right side
    143,169.93x = 15,709,277,006.34
  5. Step 5: Solve for x
    x = 15,709,277,006.34/143,169.93
  6. Step 6: Final answer
    x = 109,724.70

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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.