Home / 235,484.89-324,971.46-128,057.25

Finding the Fourth Proportional to 235,484.89, 324,971.46 and 128,057.25

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Solution

The fourth proportional to 235,484.89, 324,971.46 and 128,057.25 is: 176,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,484.89 : 324,971.46 = 128,057.25 : x
  2. Step 2: Convert to fraction form
    235,484.89/324,971.46 = 128,057.25/x
  3. Step 3: Cross multiply
    235,484.89x = 324,971.46 × 128,057.25
  4. Step 4: Simplify right side
    235,484.89x = 41,614,952,714.73
  5. Step 5: Solve for x
    x = 41,614,952,714.73/235,484.89
  6. Step 6: Final answer
    x = 176,720.27

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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.