Home / 141,864.72-195,774.67-78,204.79

Finding the Fourth Proportional to 141,864.72, 195,774.67 and 78,204.79

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Solution

The fourth proportional to 141,864.72, 195,774.67 and 78,204.79 is: 107,923.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,864.72 : 195,774.67 = 78,204.79 : x
  2. Step 2: Convert to fraction form
    141,864.72/195,774.67 = 78,204.79/x
  3. Step 3: Cross multiply
    141,864.72x = 195,774.67 × 78,204.79
  4. Step 4: Simplify right side
    141,864.72x = 15,310,517,297.14
  5. Step 5: Solve for x
    x = 15,310,517,297.14/141,864.72
  6. Step 6: Final answer
    x = 107,923.36

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1.5x scale

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.