Home / 133,105.03-183,692.39-72,681.30

Finding the Fourth Proportional to 133,105.03, 183,692.39 and 72,681.30

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Solution

The fourth proportional to 133,105.03, 183,692.39 and 72,681.30 is: 100,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,105.03 : 183,692.39 = 72,681.30 : x
  2. Step 2: Convert to fraction form
    133,105.03/183,692.39 = 72,681.30/x
  3. Step 3: Cross multiply
    133,105.03x = 183,692.39 × 72,681.30
  4. Step 4: Simplify right side
    133,105.03x = 13,351,002,057.36
  5. Step 5: Solve for x
    x = 13,351,002,057.36/133,105.03
  6. Step 6: Final answer
    x = 100,304.26

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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.