Home / 143,382.16-197,866.92-79,719.94

Finding the Fourth Proportional to 143,382.16, 197,866.92 and 79,719.94

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Solution

The fourth proportional to 143,382.16, 197,866.92 and 79,719.94 is: 110,013.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,382.16 : 197,866.92 = 79,719.94 : x
  2. Step 2: Convert to fraction form
    143,382.16/197,866.92 = 79,719.94/x
  3. Step 3: Cross multiply
    143,382.16x = 197,866.92 × 79,719.94
  4. Step 4: Simplify right side
    143,382.16x = 15,773,938,990.38
  5. Step 5: Solve for x
    x = 15,773,938,990.38/143,382.16
  6. Step 6: Final answer
    x = 110,013.26

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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.