Home / 213,423.96-320,174.82-73,151.40

Finding the Fourth Proportional to 213,423.96, 320,174.82 and 73,151.40

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Solution

The fourth proportional to 213,423.96, 320,174.82 and 73,151.40 is: 109,740.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,423.96 : 320,174.82 = 73,151.40 : x
  2. Step 2: Convert to fraction form
    213,423.96/320,174.82 = 73,151.40/x
  3. Step 3: Cross multiply
    213,423.96x = 320,174.82 × 73,151.40
  4. Step 4: Simplify right side
    213,423.96x = 23,421,236,327.75
  5. Step 5: Solve for x
    x = 23,421,236,327.75/213,423.96
  6. Step 6: Final answer
    x = 109,740.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.