Home / 136,772.66-188,768.16-80,184.04

Finding the Fourth Proportional to 136,772.66, 188,768.16 and 80,184.04

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Solution

The fourth proportional to 136,772.66, 188,768.16 and 80,184.04 is: 110,666.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,772.66 : 188,768.16 = 80,184.04 : x
  2. Step 2: Convert to fraction form
    136,772.66/188,768.16 = 80,184.04/x
  3. Step 3: Cross multiply
    136,772.66x = 188,768.16 × 80,184.04
  4. Step 4: Simplify right side
    136,772.66x = 15,136,193,692.17
  5. Step 5: Solve for x
    x = 15,136,193,692.17/136,772.66
  6. Step 6: Final answer
    x = 110,666.81

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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.