Home / 165,625.76-248,076.56-128,087.12

Finding the Fourth Proportional to 165,625.76, 248,076.56 and 128,087.12

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Solution

The fourth proportional to 165,625.76, 248,076.56 and 128,087.12 is: 191,850.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,625.76 : 248,076.56 = 128,087.12 : x
  2. Step 2: Convert to fraction form
    165,625.76/248,076.56 = 128,087.12/x
  3. Step 3: Cross multiply
    165,625.76x = 248,076.56 × 128,087.12
  4. Step 4: Simplify right side
    165,625.76x = 31,775,412,109.91
  5. Step 5: Solve for x
    x = 31,775,412,109.91/165,625.76
  6. Step 6: Final answer
    x = 191,850.66

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1.5x scale

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.