Home / 141,563.60-195,352.80-77,899.76

Finding the Fourth Proportional to 141,563.60, 195,352.80 and 77,899.76

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Solution

The fourth proportional to 141,563.60, 195,352.80 and 77,899.76 is: 107,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,563.60 : 195,352.80 = 77,899.76 : x
  2. Step 2: Convert to fraction form
    141,563.60/195,352.80 = 77,899.76/x
  3. Step 3: Cross multiply
    141,563.60x = 195,352.80 × 77,899.76
  4. Step 4: Simplify right side
    141,563.60x = 15,217,936,235.33
  5. Step 5: Solve for x
    x = 15,217,936,235.33/141,563.60
  6. Step 6: Final answer
    x = 107,498.94

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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.