Home / 99,213.87-136,910.49-56,192.34

Finding the Fourth Proportional to 99,213.87, 136,910.49 and 56,192.34

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Solution

The fourth proportional to 99,213.87, 136,910.49 and 56,192.34 is: 77,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,213.87 : 136,910.49 = 56,192.34 : x
  2. Step 2: Convert to fraction form
    99,213.87/136,910.49 = 56,192.34/x
  3. Step 3: Cross multiply
    99,213.87x = 136,910.49 × 56,192.34
  4. Step 4: Simplify right side
    99,213.87x = 7,693,321,106.34
  5. Step 5: Solve for x
    x = 7,693,321,106.34/99,213.87
  6. Step 6: Final answer
    x = 77,542.80

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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.