Home / 141,899.58-195,822.74-78,239.64

Finding the Fourth Proportional to 141,899.58, 195,822.74 and 78,239.64

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Solution

The fourth proportional to 141,899.58, 195,822.74 and 78,239.64 is: 107,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,899.58 : 195,822.74 = 78,239.64 : x
  2. Step 2: Convert to fraction form
    141,899.58/195,822.74 = 78,239.64/x
  3. Step 3: Cross multiply
    141,899.58x = 195,822.74 × 78,239.64
  4. Step 4: Simplify right side
    141,899.58x = 15,321,100,681.41
  5. Step 5: Solve for x
    x = 15,321,100,681.41/141,899.58
  6. Step 6: Final answer
    x = 107,971.43

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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.