Home / 161,811.09-223,300.35-90,195.66

Finding the Fourth Proportional to 161,811.09, 223,300.35 and 90,195.66

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Solution

The fourth proportional to 161,811.09, 223,300.35 and 90,195.66 is: 124,470.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,811.09 : 223,300.35 = 90,195.66 : x
  2. Step 2: Convert to fraction form
    161,811.09/223,300.35 = 90,195.66/x
  3. Step 3: Cross multiply
    161,811.09x = 223,300.35 × 90,195.66
  4. Step 4: Simplify right side
    161,811.09x = 20,140,722,446.48
  5. Step 5: Solve for x
    x = 20,140,722,446.48/161,811.09
  6. Step 6: Final answer
    x = 124,470.59

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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.