Home / 155,767.21-214,958.48-84,147.01

Finding the Fourth Proportional to 155,767.21, 214,958.48 and 84,147.01

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Solution

The fourth proportional to 155,767.21, 214,958.48 and 84,147.01 is: 116,122.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,767.21 : 214,958.48 = 84,147.01 : x
  2. Step 2: Convert to fraction form
    155,767.21/214,958.48 = 84,147.01/x
  3. Step 3: Cross multiply
    155,767.21x = 214,958.48 × 84,147.01
  4. Step 4: Simplify right side
    155,767.21x = 18,088,112,408.01
  5. Step 5: Solve for x
    x = 18,088,112,408.01/155,767.21
  6. Step 6: Final answer
    x = 116,122.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.