Home / 100,641.08-150,966.66-38,316.44

Finding the Fourth Proportional to 100,641.08, 150,966.66 and 38,316.44

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Solution

The fourth proportional to 100,641.08, 150,966.66 and 38,316.44 is: 57,476.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,641.08 : 150,966.66 = 38,316.44 : x
  2. Step 2: Convert to fraction form
    100,641.08/150,966.66 = 38,316.44/x
  3. Step 3: Cross multiply
    100,641.08x = 150,966.66 × 38,316.44
  4. Step 4: Simplify right side
    100,641.08x = 5,784,504,969.89
  5. Step 5: Solve for x
    x = 5,784,504,969.89/100,641.08
  6. Step 6: Final answer
    x = 57,476.58

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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.