Home / 127,299.54-175,528.43-81,297.21

Finding the Fourth Proportional to 127,299.54, 175,528.43 and 81,297.21

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Solution

The fourth proportional to 127,299.54, 175,528.43 and 81,297.21 is: 112,097.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,299.54 : 175,528.43 = 81,297.21 : x
  2. Step 2: Convert to fraction form
    127,299.54/175,528.43 = 81,297.21/x
  3. Step 3: Cross multiply
    127,299.54x = 175,528.43 × 81,297.21
  4. Step 4: Simplify right side
    127,299.54x = 14,269,971,837.92
  5. Step 5: Solve for x
    x = 14,269,971,837.92/127,299.54
  6. Step 6: Final answer
    x = 112,097.59

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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.