Home / 143,083.55-197,464.26-79,422.41

Finding the Fourth Proportional to 143,083.55, 197,464.26 and 79,422.41

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Solution

The fourth proportional to 143,083.55, 197,464.26 and 79,422.41 is: 109,607.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,083.55 : 197,464.26 = 79,422.41 : x
  2. Step 2: Convert to fraction form
    143,083.55/197,464.26 = 79,422.41/x
  3. Step 3: Cross multiply
    143,083.55x = 197,464.26 × 79,422.41
  4. Step 4: Simplify right side
    143,083.55x = 15,683,087,418.07
  5. Step 5: Solve for x
    x = 15,683,087,418.07/143,083.55
  6. Step 6: Final answer
    x = 109,607.90

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1.5x scale

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.