Home / 141,109.29-194,717.93-80,678.03

Finding the Fourth Proportional to 141,109.29, 194,717.93 and 80,678.03

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Solution

The fourth proportional to 141,109.29, 194,717.93 and 80,678.03 is: 111,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,109.29 : 194,717.93 = 80,678.03 : x
  2. Step 2: Convert to fraction form
    141,109.29/194,717.93 = 80,678.03/x
  3. Step 3: Cross multiply
    141,109.29x = 194,717.93 × 80,678.03
  4. Step 4: Simplify right side
    141,109.29x = 15,709,457,621.10
  5. Step 5: Solve for x
    x = 15,709,457,621.10/141,109.29
  6. Step 6: Final answer
    x = 111,328.30

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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.