Home / 96,450.11-133,136.09-78,513.98

Finding the Fourth Proportional to 96,450.11, 133,136.09 and 78,513.98

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Solution

The fourth proportional to 96,450.11, 133,136.09 and 78,513.98 is: 108,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,450.11 : 133,136.09 = 78,513.98 : x
  2. Step 2: Convert to fraction form
    96,450.11/133,136.09 = 78,513.98/x
  3. Step 3: Cross multiply
    96,450.11x = 133,136.09 × 78,513.98
  4. Step 4: Simplify right side
    96,450.11x = 10,453,044,307.54
  5. Step 5: Solve for x
    x = 10,453,044,307.54/96,450.11
  6. Step 6: Final answer
    x = 108,377.73

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1.5x scale

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.