Home / 125,311.89-172,930.64-68,723.67

Finding the Fourth Proportional to 125,311.89, 172,930.64 and 68,723.67

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Solution

The fourth proportional to 125,311.89, 172,930.64 and 68,723.67 is: 94,838.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,311.89 : 172,930.64 = 68,723.67 : x
  2. Step 2: Convert to fraction form
    125,311.89/172,930.64 = 68,723.67/x
  3. Step 3: Cross multiply
    125,311.89x = 172,930.64 × 68,723.67
  4. Step 4: Simplify right side
    125,311.89x = 11,884,427,892.63
  5. Step 5: Solve for x
    x = 11,884,427,892.63/125,311.89
  6. Step 6: Final answer
    x = 94,838.79

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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.