Home / 120,685.07-181,750.31-109,911.26

Finding the Fourth Proportional to 120,685.07, 181,750.31 and 109,911.26

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Solution

The fourth proportional to 120,685.07, 181,750.31 and 109,911.26 is: 165,525.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,685.07 : 181,750.31 = 109,911.26 : x
  2. Step 2: Convert to fraction form
    120,685.07/181,750.31 = 109,911.26/x
  3. Step 3: Cross multiply
    120,685.07x = 181,750.31 × 109,911.26
  4. Step 4: Simplify right side
    120,685.07x = 19,976,405,577.49
  5. Step 5: Solve for x
    x = 19,976,405,577.49/120,685.07
  6. Step 6: Final answer
    x = 165,525.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.