Home / 141,913.77-195,840.41-78,252.63

Finding the Fourth Proportional to 141,913.77, 195,840.41 and 78,252.63

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Solution

The fourth proportional to 141,913.77, 195,840.41 and 78,252.63 is: 107,988.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,913.77 : 195,840.41 = 78,252.63 : x
  2. Step 2: Convert to fraction form
    141,913.77/195,840.41 = 78,252.63/x
  3. Step 3: Cross multiply
    141,913.77x = 195,840.41 × 78,252.63
  4. Step 4: Simplify right side
    141,913.77x = 15,325,027,142.78
  5. Step 5: Solve for x
    x = 15,325,027,142.78/141,913.77
  6. Step 6: Final answer
    x = 107,988.30

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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.