Home / 143,004.89-197,346.77-79,342.54

Finding the Fourth Proportional to 143,004.89, 197,346.77 and 79,342.54

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Solution

The fourth proportional to 143,004.89, 197,346.77 and 79,342.54 is: 109,492.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,004.89 : 197,346.77 = 79,342.54 : x
  2. Step 2: Convert to fraction form
    143,004.89/197,346.77 = 79,342.54/x
  3. Step 3: Cross multiply
    143,004.89x = 197,346.77 × 79,342.54
  4. Step 4: Simplify right side
    143,004.89x = 15,657,993,992.60
  5. Step 5: Solve for x
    x = 15,657,993,992.60/143,004.89
  6. Step 6: Final answer
    x = 109,492.72

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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.