Home / 141,916.86-195,840.18-78,254.10

Finding the Fourth Proportional to 141,916.86, 195,840.18 and 78,254.10

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Solution

The fourth proportional to 141,916.86, 195,840.18 and 78,254.10 is: 107,987.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,916.86 : 195,840.18 = 78,254.10 : x
  2. Step 2: Convert to fraction form
    141,916.86/195,840.18 = 78,254.10/x
  3. Step 3: Cross multiply
    141,916.86x = 195,840.18 × 78,254.10
  4. Step 4: Simplify right side
    141,916.86x = 15,325,297,029.74
  5. Step 5: Solve for x
    x = 15,325,297,029.74/141,916.86
  6. Step 6: Final answer
    x = 107,987.85

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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.