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Finding the Fourth Proportional to 96,349, 133,108.26 and 77,009.80

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Solution

The fourth proportional to 96,349, 133,108.26 and 77,009.80 is: 106,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,349 : 133,108.26 = 77,009.80 : x
  2. Step 2: Convert to fraction form
    96,349/133,108.26 = 77,009.80/x
  3. Step 3: Cross multiply
    96,349x = 133,108.26 × 77,009.80
  4. Step 4: Simplify right side
    96,349x = 10,250,640,480.95
  5. Step 5: Solve for x
    x = 10,250,640,480.95/96,349
  6. Step 6: Final answer
    x = 106,390.73

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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.