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Finding the Fourth Proportional to 172,779.60, 259,284.60 and 97,899.60

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Solution

The fourth proportional to 172,779.60, 259,284.60 and 97,899.60 is: 146,914.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,779.60 : 259,284.60 = 97,899.60 : x
  2. Step 2: Convert to fraction form
    172,779.60/259,284.60 = 97,899.60/x
  3. Step 3: Cross multiply
    172,779.60x = 259,284.60 × 97,899.60
  4. Step 4: Simplify right side
    172,779.60x = 25,383,858,626.16
  5. Step 5: Solve for x
    x = 25,383,858,626.16/172,779.60
  6. Step 6: Final answer
    x = 146,914.67

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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.