Home / 143,673.09-198,269.10-83,255.37

Finding the Fourth Proportional to 143,673.09, 198,269.10 and 83,255.37

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Solution

The fourth proportional to 143,673.09, 198,269.10 and 83,255.37 is: 114,892.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,673.09 : 198,269.10 = 83,255.37 : x
  2. Step 2: Convert to fraction form
    143,673.09/198,269.10 = 83,255.37/x
  3. Step 3: Cross multiply
    143,673.09x = 198,269.10 × 83,255.37
  4. Step 4: Simplify right side
    143,673.09x = 16,506,967,280.07
  5. Step 5: Solve for x
    x = 16,506,967,280.07/143,673.09
  6. Step 6: Final answer
    x = 114,892.55

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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.