Home / 143,382.02-197,866.09-79,719.26

Finding the Fourth Proportional to 143,382.02, 197,866.09 and 79,719.26

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Solution

The fourth proportional to 143,382.02, 197,866.09 and 79,719.26 is: 110,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,382.02 : 197,866.09 = 79,719.26 : x
  2. Step 2: Convert to fraction form
    143,382.02/197,866.09 = 79,719.26/x
  3. Step 3: Cross multiply
    143,382.02x = 197,866.09 × 79,719.26
  4. Step 4: Simplify right side
    143,382.02x = 15,773,738,273.89
  5. Step 5: Solve for x
    x = 15,773,738,273.89/143,382.02
  6. Step 6: Final answer
    x = 110,011.97

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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.