Home / 141,916.50-195,846.12-78,256.44

Finding the Fourth Proportional to 141,916.50, 195,846.12 and 78,256.44

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Solution

The fourth proportional to 141,916.50, 195,846.12 and 78,256.44 is: 107,994.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,916.50 : 195,846.12 = 78,256.44 : x
  2. Step 2: Convert to fraction form
    141,916.50/195,846.12 = 78,256.44/x
  3. Step 3: Cross multiply
    141,916.50x = 195,846.12 × 78,256.44
  4. Step 4: Simplify right side
    141,916.50x = 15,326,220,139.01
  5. Step 5: Solve for x
    x = 15,326,220,139.01/141,916.50
  6. Step 6: Final answer
    x = 107,994.63

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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.