Home / 156,923.20-235,310.64-57,013.72

Finding the Fourth Proportional to 156,923.20, 235,310.64 and 57,013.72

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Solution

The fourth proportional to 156,923.20, 235,310.64 and 57,013.72 is: 85,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,923.20 : 235,310.64 = 57,013.72 : x
  2. Step 2: Convert to fraction form
    156,923.20/235,310.64 = 57,013.72/x
  3. Step 3: Cross multiply
    156,923.20x = 235,310.64 × 57,013.72
  4. Step 4: Simplify right side
    156,923.20x = 13,415,934,941.98
  5. Step 5: Solve for x
    x = 13,415,934,941.98/156,923.20
  6. Step 6: Final answer
    x = 85,493.64

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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.