Home / 143,074.80-197,443.44-79,410.96

Finding the Fourth Proportional to 143,074.80, 197,443.44 and 79,410.96

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Solution

The fourth proportional to 143,074.80, 197,443.44 and 79,410.96 is: 109,587.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,074.80 : 197,443.44 = 79,410.96 : x
  2. Step 2: Convert to fraction form
    143,074.80/197,443.44 = 79,410.96/x
  3. Step 3: Cross multiply
    143,074.80x = 197,443.44 × 79,410.96
  4. Step 4: Simplify right side
    143,074.80x = 15,679,173,116.10
  5. Step 5: Solve for x
    x = 15,679,173,116.10/143,074.80
  6. Step 6: Final answer
    x = 109,587.24

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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.