Home / 120,818.46-166,662.28-112,265.57

Finding the Fourth Proportional to 120,818.46, 166,662.28 and 112,265.57

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Solution

The fourth proportional to 120,818.46, 166,662.28 and 112,265.57 is: 154,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,818.46 : 166,662.28 = 112,265.57 : x
  2. Step 2: Convert to fraction form
    120,818.46/166,662.28 = 112,265.57/x
  3. Step 3: Cross multiply
    120,818.46x = 166,662.28 × 112,265.57
  4. Step 4: Simplify right side
    120,818.46x = 18,710,435,861.70
  5. Step 5: Solve for x
    x = 18,710,435,861.70/120,818.46
  6. Step 6: Final answer
    x = 154,864.05

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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.