Home / 119,126.37-164,382.12-71,378.49

Finding the Fourth Proportional to 119,126.37, 164,382.12 and 71,378.49

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Solution

The fourth proportional to 119,126.37, 164,382.12 and 71,378.49 is: 98,494.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,126.37 : 164,382.12 = 71,378.49 : x
  2. Step 2: Convert to fraction form
    119,126.37/164,382.12 = 71,378.49/x
  3. Step 3: Cross multiply
    119,126.37x = 164,382.12 × 71,378.49
  4. Step 4: Simplify right side
    119,126.37x = 11,733,347,508.60
  5. Step 5: Solve for x
    x = 11,733,347,508.60/119,126.37
  6. Step 6: Final answer
    x = 98,494.96

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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.