Home / 156,822.04-235,003.40-77,778.42

Finding the Fourth Proportional to 156,822.04, 235,003.40 and 77,778.42

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Solution

The fourth proportional to 156,822.04, 235,003.40 and 77,778.42 is: 116,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,822.04 : 235,003.40 = 77,778.42 : x
  2. Step 2: Convert to fraction form
    156,822.04/235,003.40 = 77,778.42/x
  3. Step 3: Cross multiply
    156,822.04x = 235,003.40 × 77,778.42
  4. Step 4: Simplify right side
    156,822.04x = 18,278,193,146.63
  5. Step 5: Solve for x
    x = 18,278,193,146.63/156,822.04
  6. Step 6: Final answer
    x = 116,553.73

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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.