Home / 143,146.20-197,537.96-79,482.36

Finding the Fourth Proportional to 143,146.20, 197,537.96 and 79,482.36

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Solution

The fourth proportional to 143,146.20, 197,537.96 and 79,482.36 is: 109,683.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,146.20 : 197,537.96 = 79,482.36 : x
  2. Step 2: Convert to fraction form
    143,146.20/197,537.96 = 79,482.36/x
  3. Step 3: Cross multiply
    143,146.20x = 197,537.96 × 79,482.36
  4. Step 4: Simplify right side
    143,146.20x = 15,700,783,250.39
  5. Step 5: Solve for x
    x = 15,700,783,250.39/143,146.20
  6. Step 6: Final answer
    x = 109,683.55

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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.