Home / 147,815.45-203,985.30-79,832.44

Finding the Fourth Proportional to 147,815.45, 203,985.30 and 79,832.44

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Solution

The fourth proportional to 147,815.45, 203,985.30 and 79,832.44 is: 110,168.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,815.45 : 203,985.30 = 79,832.44 : x
  2. Step 2: Convert to fraction form
    147,815.45/203,985.30 = 79,832.44/x
  3. Step 3: Cross multiply
    147,815.45x = 203,985.30 × 79,832.44
  4. Step 4: Simplify right side
    147,815.45x = 16,284,643,630.07
  5. Step 5: Solve for x
    x = 16,284,643,630.07/147,815.45
  6. Step 6: Final answer
    x = 110,168.75

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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.