Home / 131,119.02-180,972.90-83,363.04

Finding the Fourth Proportional to 131,119.02, 180,972.90 and 83,363.04

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Solution

The fourth proportional to 131,119.02, 180,972.90 and 83,363.04 is: 115,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,119.02 : 180,972.90 = 83,363.04 : x
  2. Step 2: Convert to fraction form
    131,119.02/180,972.90 = 83,363.04/x
  3. Step 3: Cross multiply
    131,119.02x = 180,972.90 × 83,363.04
  4. Step 4: Simplify right side
    131,119.02x = 15,086,451,101.62
  5. Step 5: Solve for x
    x = 15,086,451,101.62/131,119.02
  6. Step 6: Final answer
    x = 115,059.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.