Home / 127,215.36-190,604.34-99,124.56

Finding the Fourth Proportional to 127,215.36, 190,604.34 and 99,124.56

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Solution

The fourth proportional to 127,215.36, 190,604.34 and 99,124.56 is: 148,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,215.36 : 190,604.34 = 99,124.56 : x
  2. Step 2: Convert to fraction form
    127,215.36/190,604.34 = 99,124.56/x
  3. Step 3: Cross multiply
    127,215.36x = 190,604.34 × 99,124.56
  4. Step 4: Simplify right side
    127,215.36x = 18,893,571,336.59
  5. Step 5: Solve for x
    x = 18,893,571,336.59/127,215.36
  6. Step 6: Final answer
    x = 148,516.43

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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.