Home / 156,734.28-216,354.96-105,777

Finding the Fourth Proportional to 156,734.28, 216,354.96 and 105,777

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Solution

The fourth proportional to 156,734.28, 216,354.96 and 105,777 is: 146,013.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,734.28 : 216,354.96 = 105,777 : x
  2. Step 2: Convert to fraction form
    156,734.28/216,354.96 = 105,777/x
  3. Step 3: Cross multiply
    156,734.28x = 216,354.96 × 105,777
  4. Step 4: Simplify right side
    156,734.28x = 22,885,378,603.92
  5. Step 5: Solve for x
    x = 22,885,378,603.92/156,734.28
  6. Step 6: Final answer
    x = 146,013.87

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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.