Home / 141,072.49-194,679.75-77,410.72

Finding the Fourth Proportional to 141,072.49, 194,679.75 and 77,410.72

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Solution

The fourth proportional to 141,072.49, 194,679.75 and 77,410.72 is: 106,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,072.49 : 194,679.75 = 77,410.72 : x
  2. Step 2: Convert to fraction form
    141,072.49/194,679.75 = 77,410.72/x
  3. Step 3: Cross multiply
    141,072.49x = 194,679.75 × 77,410.72
  4. Step 4: Simplify right side
    141,072.49x = 15,070,299,616.92
  5. Step 5: Solve for x
    x = 15,070,299,616.92/141,072.49
  6. Step 6: Final answer
    x = 106,826.64

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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.