Home / 143,093.25-197,458.80-79,426.04

Finding the Fourth Proportional to 143,093.25, 197,458.80 and 79,426.04

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Solution

The fourth proportional to 143,093.25, 197,458.80 and 79,426.04 is: 109,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,093.25 : 197,458.80 = 79,426.04 : x
  2. Step 2: Convert to fraction form
    143,093.25/197,458.80 = 79,426.04/x
  3. Step 3: Cross multiply
    143,093.25x = 197,458.80 × 79,426.04
  4. Step 4: Simplify right side
    143,093.25x = 15,683,369,559.86
  5. Step 5: Solve for x
    x = 15,683,369,559.86/143,093.25
  6. Step 6: Final answer
    x = 109,602.44

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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.