Home / 314,128.62-471,190.77-127,137.42

Finding the Fourth Proportional to 314,128.62, 471,190.77 and 127,137.42

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Solution

The fourth proportional to 314,128.62, 471,190.77 and 127,137.42 is: 190,705.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,128.62 : 471,190.77 = 127,137.42 : x
  2. Step 2: Convert to fraction form
    314,128.62/471,190.77 = 127,137.42/x
  3. Step 3: Cross multiply
    314,128.62x = 471,190.77 × 127,137.42
  4. Step 4: Simplify right side
    314,128.62x = 59,905,978,825.61
  5. Step 5: Solve for x
    x = 59,905,978,825.61/314,128.62
  6. Step 6: Final answer
    x = 190,705.26

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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.