Home / 133,249.68-183,885.03-72,821.25

Finding the Fourth Proportional to 133,249.68, 183,885.03 and 72,821.25

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Solution

The fourth proportional to 133,249.68, 183,885.03 and 72,821.25 is: 100,493.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,249.68 : 183,885.03 = 72,821.25 : x
  2. Step 2: Convert to fraction form
    133,249.68/183,885.03 = 72,821.25/x
  3. Step 3: Cross multiply
    133,249.68x = 183,885.03 × 72,821.25
  4. Step 4: Simplify right side
    133,249.68x = 13,390,737,740.89
  5. Step 5: Solve for x
    x = 13,390,737,740.89/133,249.68
  6. Step 6: Final answer
    x = 100,493.58

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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.