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Finding the Fourth Proportional to 171,221, 236,285.36 and 94,745.64

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Solution

The fourth proportional to 171,221, 236,285.36 and 94,745.64 is: 130,749.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,221 : 236,285.36 = 94,745.64 : x
  2. Step 2: Convert to fraction form
    171,221/236,285.36 = 94,745.64/x
  3. Step 3: Cross multiply
    171,221x = 236,285.36 × 94,745.64
  4. Step 4: Simplify right side
    171,221x = 22,387,007,655.83
  5. Step 5: Solve for x
    x = 22,387,007,655.83/171,221
  6. Step 6: Final answer
    x = 130,749.19

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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.