Home / 167,686.06-231,400.05-91,205.21

Finding the Fourth Proportional to 167,686.06, 231,400.05 and 91,205.21

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Solution

The fourth proportional to 167,686.06, 231,400.05 and 91,205.21 is: 125,859.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,686.06 : 231,400.05 = 91,205.21 : x
  2. Step 2: Convert to fraction form
    167,686.06/231,400.05 = 91,205.21/x
  3. Step 3: Cross multiply
    167,686.06x = 231,400.05 × 91,205.21
  4. Step 4: Simplify right side
    167,686.06x = 21,104,889,602.15
  5. Step 5: Solve for x
    x = 21,104,889,602.15/167,686.06
  6. Step 6: Final answer
    x = 125,859.54

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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.