Home / 127,006.12-190,516.38-38,271.88

Finding the Fourth Proportional to 127,006.12, 190,516.38 and 38,271.88

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Solution

The fourth proportional to 127,006.12, 190,516.38 and 38,271.88 is: 57,409.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,006.12 : 190,516.38 = 38,271.88 : x
  2. Step 2: Convert to fraction form
    127,006.12/190,516.38 = 38,271.88/x
  3. Step 3: Cross multiply
    127,006.12x = 190,516.38 × 38,271.88
  4. Step 4: Simplify right side
    127,006.12x = 7,291,420,033.39
  5. Step 5: Solve for x
    x = 7,291,420,033.39/127,006.12
  6. Step 6: Final answer
    x = 57,409.99

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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.