Home / 143,435.64-197,938.37-79,772.07

Finding the Fourth Proportional to 143,435.64, 197,938.37 and 79,772.07

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Solution

The fourth proportional to 143,435.64, 197,938.37 and 79,772.07 is: 110,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,435.64 : 197,938.37 = 79,772.07 : x
  2. Step 2: Convert to fraction form
    143,435.64/197,938.37 = 79,772.07/x
  3. Step 3: Cross multiply
    143,435.64x = 197,938.37 × 79,772.07
  4. Step 4: Simplify right side
    143,435.64x = 15,789,953,507.33
  5. Step 5: Solve for x
    x = 15,789,953,507.33/143,435.64
  6. Step 6: Final answer
    x = 110,083.89

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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.