Home / 127,869.12-191,858.99-68,635.58

Finding the Fourth Proportional to 127,869.12, 191,858.99 and 68,635.58

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Solution

The fourth proportional to 127,869.12, 191,858.99 and 68,635.58 is: 102,983.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,869.12 : 191,858.99 = 68,635.58 : x
  2. Step 2: Convert to fraction form
    127,869.12/191,858.99 = 68,635.58/x
  3. Step 3: Cross multiply
    127,869.12x = 191,858.99 × 68,635.58
  4. Step 4: Simplify right side
    127,869.12x = 13,168,351,754.39
  5. Step 5: Solve for x
    x = 13,168,351,754.39/127,869.12
  6. Step 6: Final answer
    x = 102,983.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.