Home / 145,669.12-201,022.86-82,007.08

Finding the Fourth Proportional to 145,669.12, 201,022.86 and 82,007.08

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Solution

The fourth proportional to 145,669.12, 201,022.86 and 82,007.08 is: 113,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,669.12 : 201,022.86 = 82,007.08 : x
  2. Step 2: Convert to fraction form
    145,669.12/201,022.86 = 82,007.08/x
  3. Step 3: Cross multiply
    145,669.12x = 201,022.86 × 82,007.08
  4. Step 4: Simplify right side
    145,669.12x = 16,485,297,761.85
  5. Step 5: Solve for x
    x = 16,485,297,761.85/145,669.12
  6. Step 6: Final answer
    x = 113,169.47

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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.