Home / 270,114.85-405,172.59-70,435.09

Finding the Fourth Proportional to 270,114.85, 405,172.59 and 70,435.09

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Solution

The fourth proportional to 270,114.85, 405,172.59 and 70,435.09 is: 105,652.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,114.85 : 405,172.59 = 70,435.09 : x
  2. Step 2: Convert to fraction form
    270,114.85/405,172.59 = 70,435.09/x
  3. Step 3: Cross multiply
    270,114.85x = 405,172.59 × 70,435.09
  4. Step 4: Simplify right side
    270,114.85x = 28,538,367,842.18
  5. Step 5: Solve for x
    x = 28,538,367,842.18/270,114.85
  6. Step 6: Final answer
    x = 105,652.72

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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.