Home / 161,999.37-223,558.56-90,379.35

Finding the Fourth Proportional to 161,999.37, 223,558.56 and 90,379.35

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Solution

The fourth proportional to 161,999.37, 223,558.56 and 90,379.35 is: 124,723.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,999.37 : 223,558.56 = 90,379.35 : x
  2. Step 2: Convert to fraction form
    161,999.37/223,558.56 = 90,379.35/x
  3. Step 3: Cross multiply
    161,999.37x = 223,558.56 × 90,379.35
  4. Step 4: Simplify right side
    161,999.37x = 20,205,077,339.74
  5. Step 5: Solve for x
    x = 20,205,077,339.74/161,999.37
  6. Step 6: Final answer
    x = 124,723.18

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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.