Home / 90,236.69-135,308.31-48,105.45

Finding the Fourth Proportional to 90,236.69, 135,308.31 and 48,105.45

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Solution

The fourth proportional to 90,236.69, 135,308.31 and 48,105.45 is: 72,133.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,236.69 : 135,308.31 = 48,105.45 : x
  2. Step 2: Convert to fraction form
    90,236.69/135,308.31 = 48,105.45/x
  3. Step 3: Cross multiply
    90,236.69x = 135,308.31 × 48,105.45
  4. Step 4: Simplify right side
    90,236.69x = 6,509,067,141.29
  5. Step 5: Solve for x
    x = 6,509,067,141.29/90,236.69
  6. Step 6: Final answer
    x = 72,133.27

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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.