Home / 134,126.24-185,110.56-76,786.88

Finding the Fourth Proportional to 134,126.24, 185,110.56 and 76,786.88

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Solution

The fourth proportional to 134,126.24, 185,110.56 and 76,786.88 is: 105,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,126.24 : 185,110.56 = 76,786.88 : x
  2. Step 2: Convert to fraction form
    134,126.24/185,110.56 = 76,786.88/x
  3. Step 3: Cross multiply
    134,126.24x = 185,110.56 × 76,786.88
  4. Step 4: Simplify right side
    134,126.24x = 14,214,062,357.45
  5. Step 5: Solve for x
    x = 14,214,062,357.45/134,126.24
  6. Step 6: Final answer
    x = 105,975.25

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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.