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Finding the Fourth Proportional to 125,450.82, 173,123.42 and 68,090.67

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Solution

The fourth proportional to 125,450.82, 173,123.42 and 68,090.67 is: 93,965.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,450.82 : 173,123.42 = 68,090.67 : x
  2. Step 2: Convert to fraction form
    125,450.82/173,123.42 = 68,090.67/x
  3. Step 3: Cross multiply
    125,450.82x = 173,123.42 × 68,090.67
  4. Step 4: Simplify right side
    125,450.82x = 11,788,089,320.04
  5. Step 5: Solve for x
    x = 11,788,089,320.04/125,450.82
  6. Step 6: Final answer
    x = 93,965.82

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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.