Home / 155,361.16-231,987.92-123,412.60

Finding the Fourth Proportional to 155,361.16, 231,987.92 and 123,412.60

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Solution

The fourth proportional to 155,361.16, 231,987.92 and 123,412.60 is: 184,281.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,361.16 : 231,987.92 = 123,412.60 : x
  2. Step 2: Convert to fraction form
    155,361.16/231,987.92 = 123,412.60/x
  3. Step 3: Cross multiply
    155,361.16x = 231,987.92 × 123,412.60
  4. Step 4: Simplify right side
    155,361.16x = 28,630,232,375.79
  5. Step 5: Solve for x
    x = 28,630,232,375.79/155,361.16
  6. Step 6: Final answer
    x = 184,281.79

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.