Home / 120,268.17-165,987.66-69,271.08

Finding the Fourth Proportional to 120,268.17, 165,987.66 and 69,271.08

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Solution

The fourth proportional to 120,268.17, 165,987.66 and 69,271.08 is: 95,604.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,268.17 : 165,987.66 = 69,271.08 : x
  2. Step 2: Convert to fraction form
    120,268.17/165,987.66 = 69,271.08/x
  3. Step 3: Cross multiply
    120,268.17x = 165,987.66 × 69,271.08
  4. Step 4: Simplify right side
    120,268.17x = 11,498,144,474.87
  5. Step 5: Solve for x
    x = 11,498,144,474.87/120,268.17
  6. Step 6: Final answer
    x = 95,604.22

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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.