Home / 248,619.36-372,938.28-80,142.12

Finding the Fourth Proportional to 248,619.36, 372,938.28 and 80,142.12

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Solution

The fourth proportional to 248,619.36, 372,938.28 and 80,142.12 is: 120,216.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,619.36 : 372,938.28 = 80,142.12 : x
  2. Step 2: Convert to fraction form
    248,619.36/372,938.28 = 80,142.12/x
  3. Step 3: Cross multiply
    248,619.36x = 372,938.28 × 80,142.12
  4. Step 4: Simplify right side
    248,619.36x = 29,888,064,388.35
  5. Step 5: Solve for x
    x = 29,888,064,388.35/248,619.36
  6. Step 6: Final answer
    x = 120,216.16

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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.