Home / 161,830.74-223,329.37-90,203.05

Finding the Fourth Proportional to 161,830.74, 223,329.37 and 90,203.05

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Solution

The fourth proportional to 161,830.74, 223,329.37 and 90,203.05 is: 124,481.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,830.74 : 223,329.37 = 90,203.05 : x
  2. Step 2: Convert to fraction form
    161,830.74/223,329.37 = 90,203.05/x
  3. Step 3: Cross multiply
    161,830.74x = 223,329.37 × 90,203.05
  4. Step 4: Simplify right side
    161,830.74x = 20,144,990,551.36
  5. Step 5: Solve for x
    x = 20,144,990,551.36/161,830.74
  6. Step 6: Final answer
    x = 124,481.85

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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.