Home / 90,143.89-135,297.50-48,059.26

Finding the Fourth Proportional to 90,143.89, 135,297.50 and 48,059.26

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Solution

The fourth proportional to 90,143.89, 135,297.50 and 48,059.26 is: 72,132.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,143.89 : 135,297.50 = 48,059.26 : x
  2. Step 2: Convert to fraction form
    90,143.89/135,297.50 = 48,059.26/x
  3. Step 3: Cross multiply
    90,143.89x = 135,297.50 × 48,059.26
  4. Step 4: Simplify right side
    90,143.89x = 6,502,297,729.85
  5. Step 5: Solve for x
    x = 6,502,297,729.85/90,143.89
  6. Step 6: Final answer
    x = 72,132.43

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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.