Home / 270,126.90-405,244.62-80,590.14

Finding the Fourth Proportional to 270,126.90, 405,244.62 and 80,590.14

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Solution

The fourth proportional to 270,126.90, 405,244.62 and 80,590.14 is: 120,901.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,126.90 : 405,244.62 = 80,590.14 : x
  2. Step 2: Convert to fraction form
    270,126.90/405,244.62 = 80,590.14/x
  3. Step 3: Cross multiply
    270,126.90x = 405,244.62 × 80,590.14
  4. Step 4: Simplify right side
    270,126.90x = 32,658,720,660.05
  5. Step 5: Solve for x
    x = 32,658,720,660.05/270,126.90
  6. Step 6: Final answer
    x = 120,901.40

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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.