Home / 141,381.88-195,107.40-80,953.44

Finding the Fourth Proportional to 141,381.88, 195,107.40 and 80,953.44

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Solution

The fourth proportional to 141,381.88, 195,107.40 and 80,953.44 is: 111,715.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,381.88 : 195,107.40 = 80,953.44 : x
  2. Step 2: Convert to fraction form
    141,381.88/195,107.40 = 80,953.44/x
  3. Step 3: Cross multiply
    141,381.88x = 195,107.40 × 80,953.44
  4. Step 4: Simplify right side
    141,381.88x = 15,794,615,199.46
  5. Step 5: Solve for x
    x = 15,794,615,199.46/141,381.88
  6. Step 6: Final answer
    x = 111,715.98

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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.