Home / 141,670.55-195,505.16-78,007.79

Finding the Fourth Proportional to 141,670.55, 195,505.16 and 78,007.79

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Solution

The fourth proportional to 141,670.55, 195,505.16 and 78,007.79 is: 107,650.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,670.55 : 195,505.16 = 78,007.79 : x
  2. Step 2: Convert to fraction form
    141,670.55/195,505.16 = 78,007.79/x
  3. Step 3: Cross multiply
    141,670.55x = 195,505.16 × 78,007.79
  4. Step 4: Simplify right side
    141,670.55x = 15,250,925,563.92
  5. Step 5: Solve for x
    x = 15,250,925,563.92/141,670.55
  6. Step 6: Final answer
    x = 107,650.64

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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.