Home / 125,839.18-173,665.56-72,127.67

Finding the Fourth Proportional to 125,839.18, 173,665.56 and 72,127.67

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Solution

The fourth proportional to 125,839.18, 173,665.56 and 72,127.67 is: 99,540.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,839.18 : 173,665.56 = 72,127.67 : x
  2. Step 2: Convert to fraction form
    125,839.18/173,665.56 = 72,127.67/x
  3. Step 3: Cross multiply
    125,839.18x = 173,665.56 × 72,127.67
  4. Step 4: Simplify right side
    125,839.18x = 12,526,092,202.05
  5. Step 5: Solve for x
    x = 12,526,092,202.05/125,839.18
  6. Step 6: Final answer
    x = 99,540.48

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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.