Home / 161,634.12-223,051.46-90,020.80

Finding the Fourth Proportional to 161,634.12, 223,051.46 and 90,020.80

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Solution

The fourth proportional to 161,634.12, 223,051.46 and 90,020.80 is: 124,226.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,634.12 : 223,051.46 = 90,020.80 : x
  2. Step 2: Convert to fraction form
    161,634.12/223,051.46 = 90,020.80/x
  3. Step 3: Cross multiply
    161,634.12x = 223,051.46 × 90,020.80
  4. Step 4: Simplify right side
    161,634.12x = 20,079,270,699.08
  5. Step 5: Solve for x
    x = 20,079,270,699.08/161,634.12
  6. Step 6: Final answer
    x = 124,226.69

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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.