Home / 156,956.10-235,434.15-68,309.70

Finding the Fourth Proportional to 156,956.10, 235,434.15 and 68,309.70

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Solution

The fourth proportional to 156,956.10, 235,434.15 and 68,309.70 is: 102,464.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,956.10 : 235,434.15 = 68,309.70 : x
  2. Step 2: Convert to fraction form
    156,956.10/235,434.15 = 68,309.70/x
  3. Step 3: Cross multiply
    156,956.10x = 235,434.15 × 68,309.70
  4. Step 4: Simplify right side
    156,956.10x = 16,082,436,156.26
  5. Step 5: Solve for x
    x = 16,082,436,156.26/156,956.10
  6. Step 6: Final answer
    x = 102,464.55

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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.