Home / 156,735.68-216,361.45-105,817.37

Finding the Fourth Proportional to 156,735.68, 216,361.45 and 105,817.37

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Solution

The fourth proportional to 156,735.68, 216,361.45 and 105,817.37 is: 146,072.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,735.68 : 216,361.45 = 105,817.37 : x
  2. Step 2: Convert to fraction form
    156,735.68/216,361.45 = 105,817.37/x
  3. Step 3: Cross multiply
    156,735.68x = 216,361.45 × 105,817.37
  4. Step 4: Simplify right side
    156,735.68x = 22,894,799,884.75
  5. Step 5: Solve for x
    x = 22,894,799,884.75/156,735.68
  6. Step 6: Final answer
    x = 146,072.67

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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.