Home / 143,021.85-197,288.08-89,213.41

Finding the Fourth Proportional to 143,021.85, 197,288.08 and 89,213.41

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Solution

The fourth proportional to 143,021.85, 197,288.08 and 89,213.41 is: 123,063.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,021.85 : 197,288.08 = 89,213.41 : x
  2. Step 2: Convert to fraction form
    143,021.85/197,288.08 = 89,213.41/x
  3. Step 3: Cross multiply
    143,021.85x = 197,288.08 × 89,213.41
  4. Step 4: Simplify right side
    143,021.85x = 17,600,742,369.15
  5. Step 5: Solve for x
    x = 17,600,742,369.15/143,021.85
  6. Step 6: Final answer
    x = 123,063.31

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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.