Home / 161,809.98-223,305.45-90,190.53

Finding the Fourth Proportional to 161,809.98, 223,305.45 and 90,190.53

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Solution

The fourth proportional to 161,809.98, 223,305.45 and 90,190.53 is: 124,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,809.98 : 223,305.45 = 90,190.53 : x
  2. Step 2: Convert to fraction form
    161,809.98/223,305.45 = 90,190.53/x
  3. Step 3: Cross multiply
    161,809.98x = 223,305.45 × 90,190.53
  4. Step 4: Simplify right side
    161,809.98x = 20,140,036,887.39
  5. Step 5: Solve for x
    x = 20,140,036,887.39/161,809.98
  6. Step 6: Final answer
    x = 124,467.21

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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.