Home / 99,871.04-149,816.57-28,795.43

Finding the Fourth Proportional to 99,871.04, 149,816.57 and 28,795.43

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Solution

The fourth proportional to 99,871.04, 149,816.57 and 28,795.43 is: 43,196.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,871.04 : 149,816.57 = 28,795.43 : x
  2. Step 2: Convert to fraction form
    99,871.04/149,816.57 = 28,795.43/x
  3. Step 3: Cross multiply
    99,871.04x = 149,816.57 × 28,795.43
  4. Step 4: Simplify right side
    99,871.04x = 4,314,032,784.84
  5. Step 5: Solve for x
    x = 4,314,032,784.84/99,871.04
  6. Step 6: Final answer
    x = 43,196.03

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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.