Home / 161,810.73-223,306.47-90,191.34

Finding the Fourth Proportional to 161,810.73, 223,306.47 and 90,191.34

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Solution

The fourth proportional to 161,810.73, 223,306.47 and 90,191.34 is: 124,468.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,810.73 : 223,306.47 = 90,191.34 : x
  2. Step 2: Convert to fraction form
    161,810.73/223,306.47 = 90,191.34/x
  3. Step 3: Cross multiply
    161,810.73x = 223,306.47 × 90,191.34
  4. Step 4: Simplify right side
    161,810.73x = 20,140,309,759.97
  5. Step 5: Solve for x
    x = 20,140,309,759.97/161,810.73
  6. Step 6: Final answer
    x = 124,468.32

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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.