Home / 141,518.70-195,288.75-77,854.86

Finding the Fourth Proportional to 141,518.70, 195,288.75 and 77,854.86

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Solution

The fourth proportional to 141,518.70, 195,288.75 and 77,854.86 is: 107,435.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,518.70 : 195,288.75 = 77,854.86 : x
  2. Step 2: Convert to fraction form
    141,518.70/195,288.75 = 77,854.86/x
  3. Step 3: Cross multiply
    141,518.70x = 195,288.75 × 77,854.86
  4. Step 4: Simplify right side
    141,518.70x = 15,204,178,290.83
  5. Step 5: Solve for x
    x = 15,204,178,290.83/141,518.70
  6. Step 6: Final answer
    x = 107,435.83

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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.