Home / 137,964.03-190,357.09-80,570.76

Finding the Fourth Proportional to 137,964.03, 190,357.09 and 80,570.76

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Solution

The fourth proportional to 137,964.03, 190,357.09 and 80,570.76 is: 111,168.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,964.03 : 190,357.09 = 80,570.76 : x
  2. Step 2: Convert to fraction form
    137,964.03/190,357.09 = 80,570.76/x
  3. Step 3: Cross multiply
    137,964.03x = 190,357.09 × 80,570.76
  4. Step 4: Simplify right side
    137,964.03x = 15,337,215,412.69
  5. Step 5: Solve for x
    x = 15,337,215,412.69/137,964.03
  6. Step 6: Final answer
    x = 111,168.22

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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.