Home / 171,623.06-236,790.87-99,020.21

Finding the Fourth Proportional to 171,623.06, 236,790.87 and 99,020.21

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Solution

The fourth proportional to 171,623.06, 236,790.87 and 99,020.21 is: 136,619.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,623.06 : 236,790.87 = 99,020.21 : x
  2. Step 2: Convert to fraction form
    171,623.06/236,790.87 = 99,020.21/x
  3. Step 3: Cross multiply
    171,623.06x = 236,790.87 × 99,020.21
  4. Step 4: Simplify right side
    171,623.06x = 23,447,081,673.48
  5. Step 5: Solve for x
    x = 23,447,081,673.48/171,623.06
  6. Step 6: Final answer
    x = 136,619.65

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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.