Home / 143,283.72-197,732.48-89,600.16

Finding the Fourth Proportional to 143,283.72, 197,732.48 and 89,600.16

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Solution

The fourth proportional to 143,283.72, 197,732.48 and 89,600.16 is: 123,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,283.72 : 197,732.48 = 89,600.16 : x
  2. Step 2: Convert to fraction form
    143,283.72/197,732.48 = 89,600.16/x
  3. Step 3: Cross multiply
    143,283.72x = 197,732.48 × 89,600.16
  4. Step 4: Simplify right side
    143,283.72x = 17,716,861,845.20
  5. Step 5: Solve for x
    x = 17,716,861,845.20/143,283.72
  6. Step 6: Final answer
    x = 123,648.81

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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.