Home / 133,271.90-183,910.19-72,842.05

Finding the Fourth Proportional to 133,271.90, 183,910.19 and 72,842.05

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Solution

The fourth proportional to 133,271.90, 183,910.19 and 72,842.05 is: 100,519.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,271.90 : 183,910.19 = 72,842.05 : x
  2. Step 2: Convert to fraction form
    133,271.90/183,910.19 = 72,842.05/x
  3. Step 3: Cross multiply
    133,271.90x = 183,910.19 × 72,842.05
  4. Step 4: Simplify right side
    133,271.90x = 13,396,395,255.49
  5. Step 5: Solve for x
    x = 13,396,395,255.49/133,271.90
  6. Step 6: Final answer
    x = 100,519.28

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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.