Home / 131,237.54-196,943.16-72,114.38

Finding the Fourth Proportional to 131,237.54, 196,943.16 and 72,114.38

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Solution

The fourth proportional to 131,237.54, 196,943.16 and 72,114.38 is: 108,219.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,237.54 : 196,943.16 = 72,114.38 : x
  2. Step 2: Convert to fraction form
    131,237.54/196,943.16 = 72,114.38/x
  3. Step 3: Cross multiply
    131,237.54x = 196,943.16 × 72,114.38
  4. Step 4: Simplify right side
    131,237.54x = 14,202,432,533.35
  5. Step 5: Solve for x
    x = 14,202,432,533.35/131,237.54
  6. Step 6: Final answer
    x = 108,219.29

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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.