Home / 197,110.40-295,665.60-72,435.20

Finding the Fourth Proportional to 197,110.40, 295,665.60 and 72,435.20

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Solution

The fourth proportional to 197,110.40, 295,665.60 and 72,435.20 is: 108,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,110.40 : 295,665.60 = 72,435.20 : x
  2. Step 2: Convert to fraction form
    197,110.40/295,665.60 = 72,435.20/x
  3. Step 3: Cross multiply
    197,110.40x = 295,665.60 × 72,435.20
  4. Step 4: Simplify right side
    197,110.40x = 21,416,596,869.12
  5. Step 5: Solve for x
    x = 21,416,596,869.12/197,110.40
  6. Step 6: Final answer
    x = 108,652.80

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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.