Home / 141,031.75-194,629.58-81,415.75

Finding the Fourth Proportional to 141,031.75, 194,629.58 and 81,415.75

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Solution

The fourth proportional to 141,031.75, 194,629.58 and 81,415.75 is: 112,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,031.75 : 194,629.58 = 81,415.75 : x
  2. Step 2: Convert to fraction form
    141,031.75/194,629.58 = 81,415.75/x
  3. Step 3: Cross multiply
    141,031.75x = 194,629.58 × 81,415.75
  4. Step 4: Simplify right side
    141,031.75x = 15,845,913,227.89
  5. Step 5: Solve for x
    x = 15,845,913,227.89/141,031.75
  6. Step 6: Final answer
    x = 112,357.06

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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.