Home / 161,806.08-223,293.42-90,190.64

Finding the Fourth Proportional to 161,806.08, 223,293.42 and 90,190.64

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Solution

The fourth proportional to 161,806.08, 223,293.42 and 90,190.64 is: 124,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,806.08 : 223,293.42 = 90,190.64 : x
  2. Step 2: Convert to fraction form
    161,806.08/223,293.42 = 90,190.64/x
  3. Step 3: Cross multiply
    161,806.08x = 223,293.42 × 90,190.64
  4. Step 4: Simplify right side
    161,806.08x = 20,138,976,457.59
  5. Step 5: Solve for x
    x = 20,138,976,457.59/161,806.08
  6. Step 6: Final answer
    x = 124,463.66

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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.