Home / 131,226.10-196,795.31-42,455.86

Finding the Fourth Proportional to 131,226.10, 196,795.31 and 42,455.86

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Solution

The fourth proportional to 131,226.10, 196,795.31 and 42,455.86 is: 63,669.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,226.10 : 196,795.31 = 42,455.86 : x
  2. Step 2: Convert to fraction form
    131,226.10/196,795.31 = 42,455.86/x
  3. Step 3: Cross multiply
    131,226.10x = 196,795.31 × 42,455.86
  4. Step 4: Simplify right side
    131,226.10x = 8,355,114,130.02
  5. Step 5: Solve for x
    x = 8,355,114,130.02/131,226.10
  6. Step 6: Final answer
    x = 63,669.61

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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.