Home / 99,678.36-149,542.72-33,118.84

Finding the Fourth Proportional to 99,678.36, 149,542.72 and 33,118.84

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Solution

The fourth proportional to 99,678.36, 149,542.72 and 33,118.84 is: 49,686.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,678.36 : 149,542.72 = 33,118.84 : x
  2. Step 2: Convert to fraction form
    99,678.36/149,542.72 = 33,118.84/x
  3. Step 3: Cross multiply
    99,678.36x = 149,542.72 × 33,118.84
  4. Step 4: Simplify right side
    99,678.36x = 4,952,681,416.84
  5. Step 5: Solve for x
    x = 4,952,681,416.84/99,678.36
  6. Step 6: Final answer
    x = 49,686.63

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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.