Home / 69,115.41-103,660.56-19,182.96

Finding the Fourth Proportional to 69,115.41, 103,660.56 and 19,182.96

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Solution

The fourth proportional to 69,115.41, 103,660.56 and 19,182.96 is: 28,770.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,115.41 : 103,660.56 = 19,182.96 : x
  2. Step 2: Convert to fraction form
    69,115.41/103,660.56 = 19,182.96/x
  3. Step 3: Cross multiply
    69,115.41x = 103,660.56 × 19,182.96
  4. Step 4: Simplify right side
    69,115.41x = 1,988,516,376.06
  5. Step 5: Solve for x
    x = 1,988,516,376.06/69,115.41
  6. Step 6: Final answer
    x = 28,770.96

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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.