Home / 143,540.02-198,082.29-89,854.64

Finding the Fourth Proportional to 143,540.02, 198,082.29 and 89,854.64

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Solution

The fourth proportional to 143,540.02, 198,082.29 and 89,854.64 is: 123,997.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,540.02 : 198,082.29 = 89,854.64 : x
  2. Step 2: Convert to fraction form
    143,540.02/198,082.29 = 89,854.64/x
  3. Step 3: Cross multiply
    143,540.02x = 198,082.29 × 89,854.64
  4. Step 4: Simplify right side
    143,540.02x = 17,798,611,867.91
  5. Step 5: Solve for x
    x = 17,798,611,867.91/143,540.02
  6. Step 6: Final answer
    x = 123,997.56

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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.