Home / 141,966.26-195,912.64-78,303.90

Finding the Fourth Proportional to 141,966.26, 195,912.64 and 78,303.90

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Solution

The fourth proportional to 141,966.26, 195,912.64 and 78,303.90 is: 108,058.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,966.26 : 195,912.64 = 78,303.90 : x
  2. Step 2: Convert to fraction form
    141,966.26/195,912.64 = 78,303.90/x
  3. Step 3: Cross multiply
    141,966.26x = 195,912.64 × 78,303.90
  4. Step 4: Simplify right side
    141,966.26x = 15,340,723,771.30
  5. Step 5: Solve for x
    x = 15,340,723,771.30/141,966.26
  6. Step 6: Final answer
    x = 108,058.94

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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.