Home / 141,749.92-195,607.62-78,086.32

Finding the Fourth Proportional to 141,749.92, 195,607.62 and 78,086.32

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Solution

The fourth proportional to 141,749.92, 195,607.62 and 78,086.32 is: 107,755.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,749.92 : 195,607.62 = 78,086.32 : x
  2. Step 2: Convert to fraction form
    141,749.92/195,607.62 = 78,086.32/x
  3. Step 3: Cross multiply
    141,749.92x = 195,607.62 × 78,086.32
  4. Step 4: Simplify right side
    141,749.92x = 15,274,279,209.76
  5. Step 5: Solve for x
    x = 15,274,279,209.76/141,749.92
  6. Step 6: Final answer
    x = 107,755.12

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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.