Home / 141,677.58-195,508.04-78,003.48

Finding the Fourth Proportional to 141,677.58, 195,508.04 and 78,003.48

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Solution

The fourth proportional to 141,677.58, 195,508.04 and 78,003.48 is: 107,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,677.58 : 195,508.04 = 78,003.48 : x
  2. Step 2: Convert to fraction form
    141,677.58/195,508.04 = 78,003.48/x
  3. Step 3: Cross multiply
    141,677.58x = 195,508.04 × 78,003.48
  4. Step 4: Simplify right side
    141,677.58x = 15,250,306,999.21
  5. Step 5: Solve for x
    x = 15,250,306,999.21/141,677.58
  6. Step 6: Final answer
    x = 107,640.94

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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.