Home / 171,514.48-257,507.37-87,331.21

Finding the Fourth Proportional to 171,514.48, 257,507.37 and 87,331.21

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Solution

The fourth proportional to 171,514.48, 257,507.37 and 87,331.21 is: 131,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,514.48 : 257,507.37 = 87,331.21 : x
  2. Step 2: Convert to fraction form
    171,514.48/257,507.37 = 87,331.21/x
  3. Step 3: Cross multiply
    171,514.48x = 257,507.37 × 87,331.21
  4. Step 4: Simplify right side
    171,514.48x = 22,488,430,206.02
  5. Step 5: Solve for x
    x = 22,488,430,206.02/171,514.48
  6. Step 6: Final answer
    x = 131,116.80

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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.