Home / 156,789.70-235,184.55-51,583.30

Finding the Fourth Proportional to 156,789.70, 235,184.55 and 51,583.30

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Solution

The fourth proportional to 156,789.70, 235,184.55 and 51,583.30 is: 77,374.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,789.70 : 235,184.55 = 51,583.30 : x
  2. Step 2: Convert to fraction form
    156,789.70/235,184.55 = 51,583.30/x
  3. Step 3: Cross multiply
    156,789.70x = 235,184.55 × 51,583.30
  4. Step 4: Simplify right side
    156,789.70x = 12,131,595,198.02
  5. Step 5: Solve for x
    x = 12,131,595,198.02/156,789.70
  6. Step 6: Final answer
    x = 77,374.95

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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.