Home / 124,331.78-171,504.59-87,992.34

Finding the Fourth Proportional to 124,331.78, 171,504.59 and 87,992.34

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Solution

The fourth proportional to 124,331.78, 171,504.59 and 87,992.34 is: 121,377.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,331.78 : 171,504.59 = 87,992.34 : x
  2. Step 2: Convert to fraction form
    124,331.78/171,504.59 = 87,992.34/x
  3. Step 3: Cross multiply
    124,331.78x = 171,504.59 × 87,992.34
  4. Step 4: Simplify right side
    124,331.78x = 15,091,089,754.88
  5. Step 5: Solve for x
    x = 15,091,089,754.88/124,331.78
  6. Step 6: Final answer
    x = 121,377.58

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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.