Home / 161,741.88-223,200.78-90,120.36

Finding the Fourth Proportional to 161,741.88, 223,200.78 and 90,120.36

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Solution

The fourth proportional to 161,741.88, 223,200.78 and 90,120.36 is: 124,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,741.88 : 223,200.78 = 90,120.36 : x
  2. Step 2: Convert to fraction form
    161,741.88/223,200.78 = 90,120.36/x
  3. Step 3: Cross multiply
    161,741.88x = 223,200.78 × 90,120.36
  4. Step 4: Simplify right side
    161,741.88x = 20,114,934,645.88
  5. Step 5: Solve for x
    x = 20,114,934,645.88/161,741.88
  6. Step 6: Final answer
    x = 124,364.42

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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.