Home / 156,986.25-235,487.52-51,813.42

Finding the Fourth Proportional to 156,986.25, 235,487.52 and 51,813.42

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Solution

The fourth proportional to 156,986.25, 235,487.52 and 51,813.42 is: 77,722.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,986.25 : 235,487.52 = 51,813.42 : x
  2. Step 2: Convert to fraction form
    156,986.25/235,487.52 = 51,813.42/x
  3. Step 3: Cross multiply
    156,986.25x = 235,487.52 × 51,813.42
  4. Step 4: Simplify right side
    156,986.25x = 12,201,412,342.01
  5. Step 5: Solve for x
    x = 12,201,412,342.01/156,986.25
  6. Step 6: Final answer
    x = 77,722.81

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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.