Home / 108,584.27-149,659.11-72,220.64

Finding the Fourth Proportional to 108,584.27, 149,659.11 and 72,220.64

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Solution

The fourth proportional to 108,584.27, 149,659.11 and 72,220.64 is: 99,539.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,584.27 : 149,659.11 = 72,220.64 : x
  2. Step 2: Convert to fraction form
    108,584.27/149,659.11 = 72,220.64/x
  3. Step 3: Cross multiply
    108,584.27x = 149,659.11 × 72,220.64
  4. Step 4: Simplify right side
    108,584.27x = 10,808,476,415.64
  5. Step 5: Solve for x
    x = 10,808,476,415.64/108,584.27
  6. Step 6: Final answer
    x = 99,539.98

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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.