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Finding the Fourth Proportional to 172,703.56, 258,571.34 and 130,450.68

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Solution

The fourth proportional to 172,703.56, 258,571.34 and 130,450.68 is: 195,310.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,703.56 : 258,571.34 = 130,450.68 : x
  2. Step 2: Convert to fraction form
    172,703.56/258,571.34 = 130,450.68/x
  3. Step 3: Cross multiply
    172,703.56x = 258,571.34 × 130,450.68
  4. Step 4: Simplify right side
    172,703.56x = 33,730,807,131.51
  5. Step 5: Solve for x
    x = 33,730,807,131.51/172,703.56
  6. Step 6: Final answer
    x = 195,310.43

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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.