Home / 141,406.11-195,135.45-77,743.42

Finding the Fourth Proportional to 141,406.11, 195,135.45 and 77,743.42

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Solution

The fourth proportional to 141,406.11, 195,135.45 and 77,743.42 is: 107,283.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.11 : 195,135.45 = 77,743.42 : x
  2. Step 2: Convert to fraction form
    141,406.11/195,135.45 = 77,743.42/x
  3. Step 3: Cross multiply
    141,406.11x = 195,135.45 × 77,743.42
  4. Step 4: Simplify right side
    141,406.11x = 15,170,496,466.86
  5. Step 5: Solve for x
    x = 15,170,496,466.86/141,406.11
  6. Step 6: Final answer
    x = 107,283.18

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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.