Home / 108,711.21-149,997.52-105,127.27

Finding the Fourth Proportional to 108,711.21, 149,997.52 and 105,127.27

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Solution

The fourth proportional to 108,711.21, 149,997.52 and 105,127.27 is: 145,052.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,711.21 : 149,997.52 = 105,127.27 : x
  2. Step 2: Convert to fraction form
    108,711.21/149,997.52 = 105,127.27/x
  3. Step 3: Cross multiply
    108,711.21x = 149,997.52 × 105,127.27
  4. Step 4: Simplify right side
    108,711.21x = 15,768,829,540.79
  5. Step 5: Solve for x
    x = 15,768,829,540.79/108,711.21
  6. Step 6: Final answer
    x = 145,052.47

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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.