Home / 136,534.68-188,424.24-76,105.76

Finding the Fourth Proportional to 136,534.68, 188,424.24 and 76,105.76

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Solution

The fourth proportional to 136,534.68, 188,424.24 and 76,105.76 is: 105,029.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,534.68 : 188,424.24 = 76,105.76 : x
  2. Step 2: Convert to fraction form
    136,534.68/188,424.24 = 76,105.76/x
  3. Step 3: Cross multiply
    136,534.68x = 188,424.24 × 76,105.76
  4. Step 4: Simplify right side
    136,534.68x = 14,340,169,987.62
  5. Step 5: Solve for x
    x = 14,340,169,987.62/136,534.68
  6. Step 6: Final answer
    x = 105,029.51

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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.