Home / 127,338.36-190,745.04-74,587.92

Finding the Fourth Proportional to 127,338.36, 190,745.04 and 74,587.92

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Solution

The fourth proportional to 127,338.36, 190,745.04 and 74,587.92 is: 111,728.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,338.36 : 190,745.04 = 74,587.92 : x
  2. Step 2: Convert to fraction form
    127,338.36/190,745.04 = 74,587.92/x
  3. Step 3: Cross multiply
    127,338.36x = 190,745.04 × 74,587.92
  4. Step 4: Simplify right side
    127,338.36x = 14,227,275,783.92
  5. Step 5: Solve for x
    x = 14,227,275,783.92/127,338.36
  6. Step 6: Final answer
    x = 111,728.12

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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.