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Finding the Fourth Proportional to 90,106.01, 135,214.60 and 45,764.59

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Solution

The fourth proportional to 90,106.01, 135,214.60 and 45,764.59 is: 68,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,106.01 : 135,214.60 = 45,764.59 : x
  2. Step 2: Convert to fraction form
    90,106.01/135,214.60 = 45,764.59/x
  3. Step 3: Cross multiply
    90,106.01x = 135,214.60 × 45,764.59
  4. Step 4: Simplify right side
    90,106.01x = 6,188,040,054.94
  5. Step 5: Solve for x
    x = 6,188,040,054.94/90,106.01
  6. Step 6: Final answer
    x = 68,675.11

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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.