Home / 133,158.20-183,762.33-72,732.10

Finding the Fourth Proportional to 133,158.20, 183,762.33 and 72,732.10

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Solution

The fourth proportional to 133,158.20, 183,762.33 and 72,732.10 is: 100,372.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,158.20 : 183,762.33 = 72,732.10 : x
  2. Step 2: Convert to fraction form
    133,158.20/183,762.33 = 72,732.10/x
  3. Step 3: Cross multiply
    133,158.20x = 183,762.33 × 72,732.10
  4. Step 4: Simplify right side
    133,158.20x = 13,365,419,975.13
  5. Step 5: Solve for x
    x = 13,365,419,975.13/133,158.20
  6. Step 6: Final answer
    x = 100,372.49

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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.