Home / 156,836.89-235,123.08-68,023.51

Finding the Fourth Proportional to 156,836.89, 235,123.08 and 68,023.51

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Solution

The fourth proportional to 156,836.89, 235,123.08 and 68,023.51 is: 101,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,836.89 : 235,123.08 = 68,023.51 : x
  2. Step 2: Convert to fraction form
    156,836.89/235,123.08 = 68,023.51/x
  3. Step 3: Cross multiply
    156,836.89x = 235,123.08 × 68,023.51
  4. Step 4: Simplify right side
    156,836.89x = 15,993,895,667.88
  5. Step 5: Solve for x
    x = 15,993,895,667.88/156,836.89
  6. Step 6: Final answer
    x = 101,977.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.