Home / 145,080.86-200,202.62-80,546.36

Finding the Fourth Proportional to 145,080.86, 200,202.62 and 80,546.36

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Solution

The fourth proportional to 145,080.86, 200,202.62 and 80,546.36 is: 111,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,080.86 : 200,202.62 = 80,546.36 : x
  2. Step 2: Convert to fraction form
    145,080.86/200,202.62 = 80,546.36/x
  3. Step 3: Cross multiply
    145,080.86x = 200,202.62 × 80,546.36
  4. Step 4: Simplify right side
    145,080.86x = 16,125,590,899.72
  5. Step 5: Solve for x
    x = 16,125,590,899.72/145,080.86
  6. Step 6: Final answer
    x = 111,148.99

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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.