Home / 127,154.61-190,739.00-38,405.75

Finding the Fourth Proportional to 127,154.61, 190,739.00 and 38,405.75

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Solution

The fourth proportional to 127,154.61, 190,739.00 and 38,405.75 is: 57,610.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,154.61 : 190,739.00 = 38,405.75 : x
  2. Step 2: Convert to fraction form
    127,154.61/190,739.00 = 38,405.75/x
  3. Step 3: Cross multiply
    127,154.61x = 190,739.00 × 38,405.75
  4. Step 4: Simplify right side
    127,154.61x = 7,325,473,491.57
  5. Step 5: Solve for x
    x = 7,325,473,491.57/127,154.61
  6. Step 6: Final answer
    x = 57,610.76

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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.