Home / 141,491.52-195,285.96-81,102.60

Finding the Fourth Proportional to 141,491.52, 195,285.96 and 81,102.60

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Solution

The fourth proportional to 141,491.52, 195,285.96 and 81,102.60 is: 111,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,491.52 : 195,285.96 = 81,102.60 : x
  2. Step 2: Convert to fraction form
    141,491.52/195,285.96 = 81,102.60/x
  3. Step 3: Cross multiply
    141,491.52x = 195,285.96 × 81,102.60
  4. Step 4: Simplify right side
    141,491.52x = 15,838,199,099.50
  5. Step 5: Solve for x
    x = 15,838,199,099.50/141,491.52
  6. Step 6: Final answer
    x = 111,937.44

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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.