Home / 172,516.15-258,784.56-54,187.49

Finding the Fourth Proportional to 172,516.15, 258,784.56 and 54,187.49

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Solution

The fourth proportional to 172,516.15, 258,784.56 and 54,187.49 is: 81,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,516.15 : 258,784.56 = 54,187.49 : x
  2. Step 2: Convert to fraction form
    172,516.15/258,784.56 = 54,187.49/x
  3. Step 3: Cross multiply
    172,516.15x = 258,784.56 × 54,187.49
  4. Step 4: Simplify right side
    172,516.15x = 14,022,885,757.15
  5. Step 5: Solve for x
    x = 14,022,885,757.15/172,516.15
  6. Step 6: Final answer
    x = 81,284.48

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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.