Home / 143,210.64-197,633.40-79,554.36

Finding the Fourth Proportional to 143,210.64, 197,633.40 and 79,554.36

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Solution

The fourth proportional to 143,210.64, 197,633.40 and 79,554.36 is: 109,786.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,210.64 : 197,633.40 = 79,554.36 : x
  2. Step 2: Convert to fraction form
    143,210.64/197,633.40 = 79,554.36/x
  3. Step 3: Cross multiply
    143,210.64x = 197,633.40 × 79,554.36
  4. Step 4: Simplify right side
    143,210.64x = 15,722,598,651.62
  5. Step 5: Solve for x
    x = 15,722,598,651.62/143,210.64
  6. Step 6: Final answer
    x = 109,786.53

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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.