Home / 143,945.34-198,580.35-83,480.94

Finding the Fourth Proportional to 143,945.34, 198,580.35 and 83,480.94

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Solution

The fourth proportional to 143,945.34, 198,580.35 and 83,480.94 is: 115,166.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,945.34 : 198,580.35 = 83,480.94 : x
  2. Step 2: Convert to fraction form
    143,945.34/198,580.35 = 83,480.94/x
  3. Step 3: Cross multiply
    143,945.34x = 198,580.35 × 83,480.94
  4. Step 4: Simplify right side
    143,945.34x = 16,577,674,283.53
  5. Step 5: Solve for x
    x = 16,577,674,283.53/143,945.34
  6. Step 6: Final answer
    x = 115,166.45

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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.