Home / 161,839.51-223,348.26-90,219.49

Finding the Fourth Proportional to 161,839.51, 223,348.26 and 90,219.49

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Solution

The fourth proportional to 161,839.51, 223,348.26 and 90,219.49 is: 124,508.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,839.51 : 223,348.26 = 90,219.49 : x
  2. Step 2: Convert to fraction form
    161,839.51/223,348.26 = 90,219.49/x
  3. Step 3: Cross multiply
    161,839.51x = 223,348.26 × 90,219.49
  4. Step 4: Simplify right side
    161,839.51x = 20,150,366,109.59
  5. Step 5: Solve for x
    x = 20,150,366,109.59/161,839.51
  6. Step 6: Final answer
    x = 124,508.32

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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.