Home / 137,147.44-189,279.17-76,733.39

Finding the Fourth Proportional to 137,147.44, 189,279.17 and 76,733.39

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Solution

The fourth proportional to 137,147.44, 189,279.17 and 76,733.39 is: 105,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,147.44 : 189,279.17 = 76,733.39 : x
  2. Step 2: Convert to fraction form
    137,147.44/189,279.17 = 76,733.39/x
  3. Step 3: Cross multiply
    137,147.44x = 189,279.17 × 76,733.39
  4. Step 4: Simplify right side
    137,147.44x = 14,524,031,986.82
  5. Step 5: Solve for x
    x = 14,524,031,986.82/137,147.44
  6. Step 6: Final answer
    x = 105,900.86

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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.