Home / 99,123.20-148,635.60-35,940.80

Finding the Fourth Proportional to 99,123.20, 148,635.60 and 35,940.80

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Solution

The fourth proportional to 99,123.20, 148,635.60 and 35,940.80 is: 53,893.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,123.20 : 148,635.60 = 35,940.80 : x
  2. Step 2: Convert to fraction form
    99,123.20/148,635.60 = 35,940.80/x
  3. Step 3: Cross multiply
    99,123.20x = 148,635.60 × 35,940.80
  4. Step 4: Simplify right side
    99,123.20x = 5,342,082,372.48
  5. Step 5: Solve for x
    x = 5,342,082,372.48/99,123.20
  6. Step 6: Final answer
    x = 53,893.36

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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.