Home / 141,927.94-195,856.38-78,265.72

Finding the Fourth Proportional to 141,927.94, 195,856.38 and 78,265.72

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Solution

The fourth proportional to 141,927.94, 195,856.38 and 78,265.72 is: 108,004.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,927.94 : 195,856.38 = 78,265.72 : x
  2. Step 2: Convert to fraction form
    141,927.94/195,856.38 = 78,265.72/x
  3. Step 3: Cross multiply
    141,927.94x = 195,856.38 × 78,265.72
  4. Step 4: Simplify right side
    141,927.94x = 15,328,840,597.29
  5. Step 5: Solve for x
    x = 15,328,840,597.29/141,927.94
  6. Step 6: Final answer
    x = 108,004.39

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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.