Home / 143,568.09-198,121.01-89,882.64

Finding the Fourth Proportional to 143,568.09, 198,121.01 and 89,882.64

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Solution

The fourth proportional to 143,568.09, 198,121.01 and 89,882.64 is: 124,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,568.09 : 198,121.01 = 89,882.64 : x
  2. Step 2: Convert to fraction form
    143,568.09/198,121.01 = 89,882.64/x
  3. Step 3: Cross multiply
    143,568.09x = 198,121.01 × 89,882.64
  4. Step 4: Simplify right side
    143,568.09x = 17,807,638,968.85
  5. Step 5: Solve for x
    x = 17,807,638,968.85/143,568.09
  6. Step 6: Final answer
    x = 124,036.19

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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.