Home / 117,161.25-161,685.53-71,864.26

Finding the Fourth Proportional to 117,161.25, 161,685.53 and 71,864.26

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Solution

The fourth proportional to 117,161.25, 161,685.53 and 71,864.26 is: 99,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,161.25 : 161,685.53 = 71,864.26 : x
  2. Step 2: Convert to fraction form
    117,161.25/161,685.53 = 71,864.26/x
  3. Step 3: Cross multiply
    117,161.25x = 161,685.53 × 71,864.26
  4. Step 4: Simplify right side
    117,161.25x = 11,619,410,966.16
  5. Step 5: Solve for x
    x = 11,619,410,966.16/117,161.25
  6. Step 6: Final answer
    x = 99,174.52

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1.5x scale

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.