Home / 144,140.72-198,956.22-83,738.48

Finding the Fourth Proportional to 144,140.72, 198,956.22 and 83,738.48

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Solution

The fourth proportional to 144,140.72, 198,956.22 and 83,738.48 is: 115,583.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,140.72 : 198,956.22 = 83,738.48 : x
  2. Step 2: Convert to fraction form
    144,140.72/198,956.22 = 83,738.48/x
  3. Step 3: Cross multiply
    144,140.72x = 198,956.22 × 83,738.48
  4. Step 4: Simplify right side
    144,140.72x = 16,660,291,449.35
  5. Step 5: Solve for x
    x = 16,660,291,449.35/144,140.72
  6. Step 6: Final answer
    x = 115,583.52

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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.