Home / 141,804.45-195,691.44-78,144.51

Finding the Fourth Proportional to 141,804.45, 195,691.44 and 78,144.51

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Solution

The fourth proportional to 141,804.45, 195,691.44 and 78,144.51 is: 107,840.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,804.45 : 195,691.44 = 78,144.51 : x
  2. Step 2: Convert to fraction form
    141,804.45/195,691.44 = 78,144.51/x
  3. Step 3: Cross multiply
    141,804.45x = 195,691.44 × 78,144.51
  4. Step 4: Simplify right side
    141,804.45x = 15,292,211,689.99
  5. Step 5: Solve for x
    x = 15,292,211,689.99/141,804.45
  6. Step 6: Final answer
    x = 107,840.14

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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.