Home / 131,072.33-180,878.09-73,711.64

Finding the Fourth Proportional to 131,072.33, 180,878.09 and 73,711.64

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Solution

The fourth proportional to 131,072.33, 180,878.09 and 73,711.64 is: 101,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,072.33 : 180,878.09 = 73,711.64 : x
  2. Step 2: Convert to fraction form
    131,072.33/180,878.09 = 73,711.64/x
  3. Step 3: Cross multiply
    131,072.33x = 180,878.09 × 73,711.64
  4. Step 4: Simplify right side
    131,072.33x = 13,332,819,381.02
  5. Step 5: Solve for x
    x = 13,332,819,381.02/131,072.33
  6. Step 6: Final answer
    x = 101,721.09

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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.