Home / 143,669.19-198,263.75-83,251.50

Finding the Fourth Proportional to 143,669.19, 198,263.75 and 83,251.50

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Solution

The fourth proportional to 143,669.19, 198,263.75 and 83,251.50 is: 114,887.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,669.19 : 198,263.75 = 83,251.50 : x
  2. Step 2: Convert to fraction form
    143,669.19/198,263.75 = 83,251.50/x
  3. Step 3: Cross multiply
    143,669.19x = 198,263.75 × 83,251.50
  4. Step 4: Simplify right side
    143,669.19x = 16,505,754,583.13
  5. Step 5: Solve for x
    x = 16,505,754,583.13/143,669.19
  6. Step 6: Final answer
    x = 114,887.23

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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.