Home / 215,897.20-323,845.80-75,637.60

Finding the Fourth Proportional to 215,897.20, 323,845.80 and 75,637.60

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Solution

The fourth proportional to 215,897.20, 323,845.80 and 75,637.60 is: 113,456.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,897.20 : 323,845.80 = 75,637.60 : x
  2. Step 2: Convert to fraction form
    215,897.20/323,845.80 = 75,637.60/x
  3. Step 3: Cross multiply
    215,897.20x = 323,845.80 × 75,637.60
  4. Step 4: Simplify right side
    215,897.20x = 24,494,919,082.08
  5. Step 5: Solve for x
    x = 24,494,919,082.08/215,897.20
  6. Step 6: Final answer
    x = 113,456.40

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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.