Home / 151,986.06-209,751.62-84,001.57

Finding the Fourth Proportional to 151,986.06, 209,751.62 and 84,001.57

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Solution

The fourth proportional to 151,986.06, 209,751.62 and 84,001.57 is: 115,928.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,986.06 : 209,751.62 = 84,001.57 : x
  2. Step 2: Convert to fraction form
    151,986.06/209,751.62 = 84,001.57/x
  3. Step 3: Cross multiply
    151,986.06x = 209,751.62 × 84,001.57
  4. Step 4: Simplify right side
    151,986.06x = 17,619,463,921.28
  5. Step 5: Solve for x
    x = 17,619,463,921.28/151,986.06
  6. Step 6: Final answer
    x = 115,928.16

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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.