Home / 135,628.02-187,178.04-79,043.04

Finding the Fourth Proportional to 135,628.02, 187,178.04 and 79,043.04

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Solution

The fourth proportional to 135,628.02, 187,178.04 and 79,043.04 is: 109,086.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,628.02 : 187,178.04 = 79,043.04 : x
  2. Step 2: Convert to fraction form
    135,628.02/187,178.04 = 79,043.04/x
  3. Step 3: Cross multiply
    135,628.02x = 187,178.04 × 79,043.04
  4. Step 4: Simplify right side
    135,628.02x = 14,795,121,302.84
  5. Step 5: Solve for x
    x = 14,795,121,302.84/135,628.02
  6. Step 6: Final answer
    x = 109,086.02

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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.