Home / 161,834.88-223,327.53-90,213.42

Finding the Fourth Proportional to 161,834.88, 223,327.53 and 90,213.42

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Solution

The fourth proportional to 161,834.88, 223,327.53 and 90,213.42 is: 124,491.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,834.88 : 223,327.53 = 90,213.42 : x
  2. Step 2: Convert to fraction form
    161,834.88/223,327.53 = 90,213.42/x
  3. Step 3: Cross multiply
    161,834.88x = 223,327.53 × 90,213.42
  4. Step 4: Simplify right side
    161,834.88x = 20,147,140,261.45
  5. Step 5: Solve for x
    x = 20,147,140,261.45/161,834.88
  6. Step 6: Final answer
    x = 124,491.95

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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.