Home / 100,918.56-151,376.60-30,798.06

Finding the Fourth Proportional to 100,918.56, 151,376.60 and 30,798.06

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Solution

The fourth proportional to 100,918.56, 151,376.60 and 30,798.06 is: 46,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,918.56 : 151,376.60 = 30,798.06 : x
  2. Step 2: Convert to fraction form
    100,918.56/151,376.60 = 30,798.06/x
  3. Step 3: Cross multiply
    100,918.56x = 151,376.60 × 30,798.06
  4. Step 4: Simplify right side
    100,918.56x = 4,662,105,609.40
  5. Step 5: Solve for x
    x = 4,662,105,609.40/100,918.56
  6. Step 6: Final answer
    x = 46,196.71

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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.