Home / 141,799.84-195,687.95-78,141.74

Finding the Fourth Proportional to 141,799.84, 195,687.95 and 78,141.74

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Solution

The fourth proportional to 141,799.84, 195,687.95 and 78,141.74 is: 107,837.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,799.84 : 195,687.95 = 78,141.74 : x
  2. Step 2: Convert to fraction form
    141,799.84/195,687.95 = 78,141.74/x
  3. Step 3: Cross multiply
    141,799.84x = 195,687.95 × 78,141.74
  4. Step 4: Simplify right side
    141,799.84x = 15,291,395,540.88
  5. Step 5: Solve for x
    x = 15,291,395,540.88/141,799.84
  6. Step 6: Final answer
    x = 107,837.89

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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.