Home / 161,942.09-223,480.42-90,320.27

Finding the Fourth Proportional to 161,942.09, 223,480.42 and 90,320.27

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Solution

The fourth proportional to 161,942.09, 223,480.42 and 90,320.27 is: 124,642.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,942.09 : 223,480.42 = 90,320.27 : x
  2. Step 2: Convert to fraction form
    161,942.09/223,480.42 = 90,320.27/x
  3. Step 3: Cross multiply
    161,942.09x = 223,480.42 × 90,320.27
  4. Step 4: Simplify right side
    161,942.09x = 20,184,810,530.91
  5. Step 5: Solve for x
    x = 20,184,810,530.91/161,942.09
  6. Step 6: Final answer
    x = 124,642.16

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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.