Home / 141,070.96-194,690.24-77,421.04

Finding the Fourth Proportional to 141,070.96, 194,690.24 and 77,421.04

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Solution

The fourth proportional to 141,070.96, 194,690.24 and 77,421.04 is: 106,847.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,070.96 : 194,690.24 = 77,421.04 : x
  2. Step 2: Convert to fraction form
    141,070.96/194,690.24 = 77,421.04/x
  3. Step 3: Cross multiply
    141,070.96x = 194,690.24 × 77,421.04
  4. Step 4: Simplify right side
    141,070.96x = 15,073,120,858.65
  5. Step 5: Solve for x
    x = 15,073,120,858.65/141,070.96
  6. Step 6: Final answer
    x = 106,847.79

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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.