Home / 179,817.72-248,156.55-103,361.64

Finding the Fourth Proportional to 179,817.72, 248,156.55 and 103,361.64

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Solution

The fourth proportional to 179,817.72, 248,156.55 and 103,361.64 is: 142,643.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,817.72 : 248,156.55 = 103,361.64 : x
  2. Step 2: Convert to fraction form
    179,817.72/248,156.55 = 103,361.64/x
  3. Step 3: Cross multiply
    179,817.72x = 248,156.55 × 103,361.64
  4. Step 4: Simplify right side
    179,817.72x = 25,649,867,984.74
  5. Step 5: Solve for x
    x = 25,649,867,984.74/179,817.72
  6. Step 6: Final answer
    x = 142,643.72

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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.