Home / 131,255.08-196,913.70-42,508.54

Finding the Fourth Proportional to 131,255.08, 196,913.70 and 42,508.54

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Solution

The fourth proportional to 131,255.08, 196,913.70 and 42,508.54 is: 63,772.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,255.08 : 196,913.70 = 42,508.54 : x
  2. Step 2: Convert to fraction form
    131,255.08/196,913.70 = 42,508.54/x
  3. Step 3: Cross multiply
    131,255.08x = 196,913.70 × 42,508.54
  4. Step 4: Simplify right side
    131,255.08x = 8,370,513,893.00
  5. Step 5: Solve for x
    x = 8,370,513,893.00/131,255.08
  6. Step 6: Final answer
    x = 63,772.88

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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.