Home / 141,812.86-195,701.75-78,150.66

Finding the Fourth Proportional to 141,812.86, 195,701.75 and 78,150.66

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Solution

The fourth proportional to 141,812.86, 195,701.75 and 78,150.66 is: 107,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,812.86 : 195,701.75 = 78,150.66 : x
  2. Step 2: Convert to fraction form
    141,812.86/195,701.75 = 78,150.66/x
  3. Step 3: Cross multiply
    141,812.86x = 195,701.75 × 78,150.66
  4. Step 4: Simplify right side
    141,812.86x = 15,294,219,801.02
  5. Step 5: Solve for x
    x = 15,294,219,801.02/141,812.86
  6. Step 6: Final answer
    x = 107,847.90

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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.