Home / 151,945.75-209,685.14-84,877.75

Finding the Fourth Proportional to 151,945.75, 209,685.14 and 84,877.75

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Solution

The fourth proportional to 151,945.75, 209,685.14 and 84,877.75 is: 117,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,945.75 : 209,685.14 = 84,877.75 : x
  2. Step 2: Convert to fraction form
    151,945.75/209,685.14 = 84,877.75/x
  3. Step 3: Cross multiply
    151,945.75x = 209,685.14 × 84,877.75
  4. Step 4: Simplify right side
    151,945.75x = 17,797,602,891.64
  5. Step 5: Solve for x
    x = 17,797,602,891.64/151,945.75
  6. Step 6: Final answer
    x = 117,131.30

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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.