Home / 131,169.40-196,458.06-91,901.80

Finding the Fourth Proportional to 131,169.40, 196,458.06 and 91,901.80

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Solution

The fourth proportional to 131,169.40, 196,458.06 and 91,901.80 is: 137,645.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,169.40 : 196,458.06 = 91,901.80 : x
  2. Step 2: Convert to fraction form
    131,169.40/196,458.06 = 91,901.80/x
  3. Step 3: Cross multiply
    131,169.40x = 196,458.06 × 91,901.80
  4. Step 4: Simplify right side
    131,169.40x = 18,054,849,338.51
  5. Step 5: Solve for x
    x = 18,054,849,338.51/131,169.40
  6. Step 6: Final answer
    x = 137,645.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.