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Finding the Fourth Proportional to 172,775.55, 259,146.32 and 60,435.03

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Solution

The fourth proportional to 172,775.55, 259,146.32 and 60,435.03 is: 90,646.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,775.55 : 259,146.32 = 60,435.03 : x
  2. Step 2: Convert to fraction form
    172,775.55/259,146.32 = 60,435.03/x
  3. Step 3: Cross multiply
    172,775.55x = 259,146.32 × 60,435.03
  4. Step 4: Simplify right side
    172,775.55x = 15,661,515,321.41
  5. Step 5: Solve for x
    x = 15,661,515,321.41/172,775.55
  6. Step 6: Final answer
    x = 90,646.60

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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.