Home / 167,412.36-231,030.77-90,932.21

Finding the Fourth Proportional to 167,412.36, 231,030.77 and 90,932.21

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Solution

The fourth proportional to 167,412.36, 231,030.77 and 90,932.21 is: 125,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,412.36 : 231,030.77 = 90,932.21 : x
  2. Step 2: Convert to fraction form
    167,412.36/231,030.77 = 90,932.21/x
  3. Step 3: Cross multiply
    167,412.36x = 231,030.77 × 90,932.21
  4. Step 4: Simplify right side
    167,412.36x = 21,008,136,884.29
  5. Step 5: Solve for x
    x = 21,008,136,884.29/167,412.36
  6. Step 6: Final answer
    x = 125,487.37

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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.