Home / 117,721.40-176,841.30-82,729.40

Finding the Fourth Proportional to 117,721.40, 176,841.30 and 82,729.40

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Solution

The fourth proportional to 117,721.40, 176,841.30 and 82,729.40 is: 124,276.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,721.40 : 176,841.30 = 82,729.40 : x
  2. Step 2: Convert to fraction form
    117,721.40/176,841.30 = 82,729.40/x
  3. Step 3: Cross multiply
    117,721.40x = 176,841.30 × 82,729.40
  4. Step 4: Simplify right side
    117,721.40x = 14,629,974,644.22
  5. Step 5: Solve for x
    x = 14,629,974,644.22/117,721.40
  6. Step 6: Final answer
    x = 124,276.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.