Home / 141,900.28-195,840.10-81,489.80

Finding the Fourth Proportional to 141,900.28, 195,840.10 and 81,489.80

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Solution

The fourth proportional to 141,900.28, 195,840.10 and 81,489.80 is: 112,466.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,900.28 : 195,840.10 = 81,489.80 : x
  2. Step 2: Convert to fraction form
    141,900.28/195,840.10 = 81,489.80/x
  3. Step 3: Cross multiply
    141,900.28x = 195,840.10 × 81,489.80
  4. Step 4: Simplify right side
    141,900.28x = 15,958,970,580.98
  5. Step 5: Solve for x
    x = 15,958,970,580.98/141,900.28
  6. Step 6: Final answer
    x = 112,466.10

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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.