Home / 156,438.78-234,518.97-56,576.78

Finding the Fourth Proportional to 156,438.78, 234,518.97 and 56,576.78

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Solution

The fourth proportional to 156,438.78, 234,518.97 and 56,576.78 is: 84,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,438.78 : 234,518.97 = 56,576.78 : x
  2. Step 2: Convert to fraction form
    156,438.78/234,518.97 = 56,576.78/x
  3. Step 3: Cross multiply
    156,438.78x = 234,518.97 × 56,576.78
  4. Step 4: Simplify right side
    156,438.78x = 13,268,326,998.92
  5. Step 5: Solve for x
    x = 13,268,326,998.92/156,438.78
  6. Step 6: Final answer
    x = 84,814.82

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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.