Home / 144,220.40-198,742.98-103,857.90

Finding the Fourth Proportional to 144,220.40, 198,742.98 and 103,857.90

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Solution

The fourth proportional to 144,220.40, 198,742.98 and 103,857.90 is: 143,121.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,220.40 : 198,742.98 = 103,857.90 : x
  2. Step 2: Convert to fraction form
    144,220.40/198,742.98 = 103,857.90/x
  3. Step 3: Cross multiply
    144,220.40x = 198,742.98 × 103,857.90
  4. Step 4: Simplify right side
    144,220.40x = 20,641,028,542.54
  5. Step 5: Solve for x
    x = 20,641,028,542.54/144,220.40
  6. Step 6: Final answer
    x = 143,121.42

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1.5x scale

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.