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Finding the Fourth Proportional to 108,401.88, 149,576.74 and 68,086.92

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Solution

The fourth proportional to 108,401.88, 149,576.74 and 68,086.92 is: 93,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,401.88 : 149,576.74 = 68,086.92 : x
  2. Step 2: Convert to fraction form
    108,401.88/149,576.74 = 68,086.92/x
  3. Step 3: Cross multiply
    108,401.88x = 149,576.74 × 68,086.92
  4. Step 4: Simplify right side
    108,401.88x = 10,184,220,303.93
  5. Step 5: Solve for x
    x = 10,184,220,303.93/108,401.88
  6. Step 6: Final answer
    x = 93,948.74

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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.