Home / 141,941.07-195,879.92-78,281.07

Finding the Fourth Proportional to 141,941.07, 195,879.92 and 78,281.07

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Solution

The fourth proportional to 141,941.07, 195,879.92 and 78,281.07 is: 108,028.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,941.07 : 195,879.92 = 78,281.07 : x
  2. Step 2: Convert to fraction form
    141,941.07/195,879.92 = 78,281.07/x
  3. Step 3: Cross multiply
    141,941.07x = 195,879.92 × 78,281.07
  4. Step 4: Simplify right side
    141,941.07x = 15,333,689,337.71
  5. Step 5: Solve for x
    x = 15,333,689,337.71/141,941.07
  6. Step 6: Final answer
    x = 108,028.56

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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.