Home / 156,917.20-235,301.64-57,007.72

Finding the Fourth Proportional to 156,917.20, 235,301.64 and 57,007.72

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Solution

The fourth proportional to 156,917.20, 235,301.64 and 57,007.72 is: 85,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,917.20 : 235,301.64 = 57,007.72 : x
  2. Step 2: Convert to fraction form
    156,917.20/235,301.64 = 57,007.72/x
  3. Step 3: Cross multiply
    156,917.20x = 235,301.64 × 57,007.72
  4. Step 4: Simplify right side
    156,917.20x = 13,414,010,008.66
  5. Step 5: Solve for x
    x = 13,414,010,008.66/156,917.20
  6. Step 6: Final answer
    x = 85,484.64

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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.