Home / 161,917.60-242,584.80-99,515.20

Finding the Fourth Proportional to 161,917.60, 242,584.80 and 99,515.20

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Solution

The fourth proportional to 161,917.60, 242,584.80 and 99,515.20 is: 149,093.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,917.60 : 242,584.80 = 99,515.20 : x
  2. Step 2: Convert to fraction form
    161,917.60/242,584.80 = 99,515.20/x
  3. Step 3: Cross multiply
    161,917.60x = 242,584.80 × 99,515.20
  4. Step 4: Simplify right side
    161,917.60x = 24,140,874,888.96
  5. Step 5: Solve for x
    x = 24,140,874,888.96/161,917.60
  6. Step 6: Final answer
    x = 149,093.58

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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.