Home / 171,999.40-257,999.10-165,110.35

Finding the Fourth Proportional to 171,999.40, 257,999.10 and 165,110.35

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Solution

The fourth proportional to 171,999.40, 257,999.10 and 165,110.35 is: 247,665.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,999.40 : 257,999.10 = 165,110.35 : x
  2. Step 2: Convert to fraction form
    171,999.40/257,999.10 = 165,110.35/x
  3. Step 3: Cross multiply
    171,999.40x = 257,999.10 × 165,110.35
  4. Step 4: Simplify right side
    171,999.40x = 42,598,321,700.69
  5. Step 5: Solve for x
    x = 42,598,321,700.69/171,999.40
  6. Step 6: Final answer
    x = 247,665.53

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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.