Home / 213,426.56-320,188.48-73,176.72

Finding the Fourth Proportional to 213,426.56, 320,188.48 and 73,176.72

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Solution

The fourth proportional to 213,426.56, 320,188.48 and 73,176.72 is: 109,781.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,426.56 : 320,188.48 = 73,176.72 : x
  2. Step 2: Convert to fraction form
    213,426.56/320,188.48 = 73,176.72/x
  3. Step 3: Cross multiply
    213,426.56x = 320,188.48 × 73,176.72
  4. Step 4: Simplify right side
    213,426.56x = 23,430,342,748.19
  5. Step 5: Solve for x
    x = 23,430,342,748.19/213,426.56
  6. Step 6: Final answer
    x = 109,781.76

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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.