Home / 172,011.16-257,899.62-87,563.80

Finding the Fourth Proportional to 172,011.16, 257,899.62 and 87,563.80

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Solution

The fourth proportional to 172,011.16, 257,899.62 and 87,563.80 is: 131,286.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,011.16 : 257,899.62 = 87,563.80 : x
  2. Step 2: Convert to fraction form
    172,011.16/257,899.62 = 87,563.80/x
  3. Step 3: Cross multiply
    172,011.16x = 257,899.62 × 87,563.80
  4. Step 4: Simplify right side
    172,011.16x = 22,582,670,745.76
  5. Step 5: Solve for x
    x = 22,582,670,745.76/172,011.16
  6. Step 6: Final answer
    x = 131,286.08

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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.