Home / 141,608.40-195,415.86-77,078.94

Finding the Fourth Proportional to 141,608.40, 195,415.86 and 77,078.94

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Solution

The fourth proportional to 141,608.40, 195,415.86 and 77,078.94 is: 106,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,608.40 : 195,415.86 = 77,078.94 : x
  2. Step 2: Convert to fraction form
    141,608.40/195,415.86 = 77,078.94/x
  3. Step 3: Cross multiply
    141,608.40x = 195,415.86 × 77,078.94
  4. Step 4: Simplify right side
    141,608.40x = 15,062,447,347.99
  5. Step 5: Solve for x
    x = 15,062,447,347.99/141,608.40
  6. Step 6: Final answer
    x = 106,366.91

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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.