Home / 141,804.54-195,698.97-78,142.32

Finding the Fourth Proportional to 141,804.54, 195,698.97 and 78,142.32

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Solution

The fourth proportional to 141,804.54, 195,698.97 and 78,142.32 is: 107,841.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,804.54 : 195,698.97 = 78,142.32 : x
  2. Step 2: Convert to fraction form
    141,804.54/195,698.97 = 78,142.32/x
  3. Step 3: Cross multiply
    141,804.54x = 195,698.97 × 78,142.32
  4. Step 4: Simplify right side
    141,804.54x = 15,292,371,537.41
  5. Step 5: Solve for x
    x = 15,292,371,537.41/141,804.54
  6. Step 6: Final answer
    x = 107,841.20

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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.