Home / 143,916.93-198,660.08-108,210.63

Finding the Fourth Proportional to 143,916.93, 198,660.08 and 108,210.63

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Solution

The fourth proportional to 143,916.93, 198,660.08 and 108,210.63 is: 149,371.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,916.93 : 198,660.08 = 108,210.63 : x
  2. Step 2: Convert to fraction form
    143,916.93/198,660.08 = 108,210.63/x
  3. Step 3: Cross multiply
    143,916.93x = 198,660.08 × 108,210.63
  4. Step 4: Simplify right side
    143,916.93x = 21,497,131,871.60
  5. Step 5: Solve for x
    x = 21,497,131,871.60/143,916.93
  6. Step 6: Final answer
    x = 149,371.81

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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.