Home / 151,964.92-209,715.78-83,986.30

Finding the Fourth Proportional to 151,964.92, 209,715.78 and 83,986.30

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Solution

The fourth proportional to 151,964.92, 209,715.78 and 83,986.30 is: 115,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,964.92 : 209,715.78 = 83,986.30 : x
  2. Step 2: Convert to fraction form
    151,964.92/209,715.78 = 83,986.30/x
  3. Step 3: Cross multiply
    151,964.92x = 209,715.78 × 83,986.30
  4. Step 4: Simplify right side
    151,964.92x = 17,613,252,413.81
  5. Step 5: Solve for x
    x = 17,613,252,413.81/151,964.92
  6. Step 6: Final answer
    x = 115,903.41

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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.