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Finding the Fourth Proportional to 126,253.98, 174,108.85 and 84,954

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Solution

The fourth proportional to 126,253.98, 174,108.85 and 84,954 is: 117,154.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,253.98 : 174,108.85 = 84,954 : x
  2. Step 2: Convert to fraction form
    126,253.98/174,108.85 = 84,954/x
  3. Step 3: Cross multiply
    126,253.98x = 174,108.85 × 84,954
  4. Step 4: Simplify right side
    126,253.98x = 14,791,243,242.90
  5. Step 5: Solve for x
    x = 14,791,243,242.90/126,253.98
  6. Step 6: Final answer
    x = 117,154.67

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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.