Home / 141,844.65-195,742.16-78,181.05

Finding the Fourth Proportional to 141,844.65, 195,742.16 and 78,181.05

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Solution

The fourth proportional to 141,844.65, 195,742.16 and 78,181.05 is: 107,887.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,844.65 : 195,742.16 = 78,181.05 : x
  2. Step 2: Convert to fraction form
    141,844.65/195,742.16 = 78,181.05/x
  3. Step 3: Cross multiply
    141,844.65x = 195,742.16 × 78,181.05
  4. Step 4: Simplify right side
    141,844.65x = 15,303,327,207.16
  5. Step 5: Solve for x
    x = 15,303,327,207.16/141,844.65
  6. Step 6: Final answer
    x = 107,887.94

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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.