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Finding the Fourth Proportional to 108,999.42, 150,414.36 and 63,681.60

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Solution

The fourth proportional to 108,999.42, 150,414.36 and 63,681.60 is: 87,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.42 : 150,414.36 = 63,681.60 : x
  2. Step 2: Convert to fraction form
    108,999.42/150,414.36 = 63,681.60/x
  3. Step 3: Cross multiply
    108,999.42x = 150,414.36 × 63,681.60
  4. Step 4: Simplify right side
    108,999.42x = 9,578,627,107.78
  5. Step 5: Solve for x
    x = 9,578,627,107.78/108,999.42
  6. Step 6: Final answer
    x = 87,877.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.