Home / 131,140.64-196,706.30-42,391.82

Finding the Fourth Proportional to 131,140.64, 196,706.30 and 42,391.82

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Solution

The fourth proportional to 131,140.64, 196,706.30 and 42,391.82 is: 63,586.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,140.64 : 196,706.30 = 42,391.82 : x
  2. Step 2: Convert to fraction form
    131,140.64/196,706.30 = 42,391.82/x
  3. Step 3: Cross multiply
    131,140.64x = 196,706.30 × 42,391.82
  4. Step 4: Simplify right side
    131,140.64x = 8,338,738,342.27
  5. Step 5: Solve for x
    x = 8,338,738,342.27/131,140.64
  6. Step 6: Final answer
    x = 63,586.22

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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.