Home / 131,537.32-197,308.41-42,790.48

Finding the Fourth Proportional to 131,537.32, 197,308.41 and 42,790.48

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Solution

The fourth proportional to 131,537.32, 197,308.41 and 42,790.48 is: 64,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,537.32 : 197,308.41 = 42,790.48 : x
  2. Step 2: Convert to fraction form
    131,537.32/197,308.41 = 42,790.48/x
  3. Step 3: Cross multiply
    131,537.32x = 197,308.41 × 42,790.48
  4. Step 4: Simplify right side
    131,537.32x = 8,442,921,571.94
  5. Step 5: Solve for x
    x = 8,442,921,571.94/131,537.32
  6. Step 6: Final answer
    x = 64,186.51

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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.