Home / 158,188.32-218,278.80-91,107.36

Finding the Fourth Proportional to 158,188.32, 218,278.80 and 91,107.36

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Solution

The fourth proportional to 158,188.32, 218,278.80 and 91,107.36 is: 125,716.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,188.32 : 218,278.80 = 91,107.36 : x
  2. Step 2: Convert to fraction form
    158,188.32/218,278.80 = 91,107.36/x
  3. Step 3: Cross multiply
    158,188.32x = 218,278.80 × 91,107.36
  4. Step 4: Simplify right side
    158,188.32x = 19,886,805,211.97
  5. Step 5: Solve for x
    x = 19,886,805,211.97/158,188.32
  6. Step 6: Final answer
    x = 125,716.02

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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.