Home / 143,938.58-198,571.06-83,474.18

Finding the Fourth Proportional to 143,938.58, 198,571.06 and 83,474.18

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Solution

The fourth proportional to 143,938.58, 198,571.06 and 83,474.18 is: 115,157.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,938.58 : 198,571.06 = 83,474.18 : x
  2. Step 2: Convert to fraction form
    143,938.58/198,571.06 = 83,474.18/x
  3. Step 3: Cross multiply
    143,938.58x = 198,571.06 × 83,474.18
  4. Step 4: Simplify right side
    143,938.58x = 16,575,556,746.92
  5. Step 5: Solve for x
    x = 16,575,556,746.92/143,938.58
  6. Step 6: Final answer
    x = 115,157.15

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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.