Home / 141,072.21-194,679.10-77,411.07

Finding the Fourth Proportional to 141,072.21, 194,679.10 and 77,411.07

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Solution

The fourth proportional to 141,072.21, 194,679.10 and 77,411.07 is: 106,826.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,072.21 : 194,679.10 = 77,411.07 : x
  2. Step 2: Convert to fraction form
    141,072.21/194,679.10 = 77,411.07/x
  3. Step 3: Cross multiply
    141,072.21x = 194,679.10 × 77,411.07
  4. Step 4: Simplify right side
    141,072.21x = 15,070,317,437.64
  5. Step 5: Solve for x
    x = 15,070,317,437.64/141,072.21
  6. Step 6: Final answer
    x = 106,826.97

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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.