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Finding the Fourth Proportional to 108,390.88, 162,615.62 and 45,190.09

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Solution

The fourth proportional to 108,390.88, 162,615.62 and 45,190.09 is: 67,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,390.88 : 162,615.62 = 45,190.09 : x
  2. Step 2: Convert to fraction form
    108,390.88/162,615.62 = 45,190.09/x
  3. Step 3: Cross multiply
    108,390.88x = 162,615.62 × 45,190.09
  4. Step 4: Simplify right side
    108,390.88x = 7,348,614,503.21
  5. Step 5: Solve for x
    x = 7,348,614,503.21/108,390.88
  6. Step 6: Final answer
    x = 67,797.35

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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.