Home / 141,836.11-195,734.75-78,173.90

Finding the Fourth Proportional to 141,836.11, 195,734.75 and 78,173.90

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Solution

The fourth proportional to 141,836.11, 195,734.75 and 78,173.90 is: 107,880.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,836.11 : 195,734.75 = 78,173.90 : x
  2. Step 2: Convert to fraction form
    141,836.11/195,734.75 = 78,173.90/x
  3. Step 3: Cross multiply
    141,836.11x = 195,734.75 × 78,173.90
  4. Step 4: Simplify right side
    141,836.11x = 15,301,349,457.80
  5. Step 5: Solve for x
    x = 15,301,349,457.80/141,836.11
  6. Step 6: Final answer
    x = 107,880.49

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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.