Home / 120,276.47-165,977.41-66,563.75

Finding the Fourth Proportional to 120,276.47, 165,977.41 and 66,563.75

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Solution

The fourth proportional to 120,276.47, 165,977.41 and 66,563.75 is: 91,855.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,276.47 : 165,977.41 = 66,563.75 : x
  2. Step 2: Convert to fraction form
    120,276.47/165,977.41 = 66,563.75/x
  3. Step 3: Cross multiply
    120,276.47x = 165,977.41 × 66,563.75
  4. Step 4: Simplify right side
    120,276.47x = 11,048,078,409.94
  5. Step 5: Solve for x
    x = 11,048,078,409.94/120,276.47
  6. Step 6: Final answer
    x = 91,855.69

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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.