Home / 141,178.10-194,828.56-77,515.34

Finding the Fourth Proportional to 141,178.10, 194,828.56 and 77,515.34

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Solution

The fourth proportional to 141,178.10, 194,828.56 and 77,515.34 is: 106,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,178.10 : 194,828.56 = 77,515.34 : x
  2. Step 2: Convert to fraction form
    141,178.10/194,828.56 = 77,515.34/x
  3. Step 3: Cross multiply
    141,178.10x = 194,828.56 × 77,515.34
  4. Step 4: Simplify right side
    141,178.10x = 15,102,200,902.18
  5. Step 5: Solve for x
    x = 15,102,200,902.18/141,178.10
  6. Step 6: Final answer
    x = 106,972.69

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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.