Home / 231,544.60-319,548.70-129,580.26

Finding the Fourth Proportional to 231,544.60, 319,548.70 and 129,580.26

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Solution

The fourth proportional to 231,544.60, 319,548.70 and 129,580.26 is: 178,830.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,544.60 : 319,548.70 = 129,580.26 : x
  2. Step 2: Convert to fraction form
    231,544.60/319,548.70 = 129,580.26/x
  3. Step 3: Cross multiply
    231,544.60x = 319,548.70 × 129,580.26
  4. Step 4: Simplify right side
    231,544.60x = 41,407,203,628.66
  5. Step 5: Solve for x
    x = 41,407,203,628.66/231,544.60
  6. Step 6: Final answer
    x = 178,830.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.