Home / 141,130.20-194,762.76-80,706.36

Finding the Fourth Proportional to 141,130.20, 194,762.76 and 80,706.36

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Solution

The fourth proportional to 141,130.20, 194,762.76 and 80,706.36 is: 111,376.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,130.20 : 194,762.76 = 80,706.36 : x
  2. Step 2: Convert to fraction form
    141,130.20/194,762.76 = 80,706.36/x
  3. Step 3: Cross multiply
    141,130.20x = 194,762.76 × 80,706.36
  4. Step 4: Simplify right side
    141,130.20x = 15,718,593,423.15
  5. Step 5: Solve for x
    x = 15,718,593,423.15/141,130.20
  6. Step 6: Final answer
    x = 111,376.54

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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.