Home / 133,101.45-183,677.09-72,669.78

Finding the Fourth Proportional to 133,101.45, 183,677.09 and 72,669.78

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Solution

The fourth proportional to 133,101.45, 183,677.09 and 72,669.78 is: 100,282.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,101.45 : 183,677.09 = 72,669.78 : x
  2. Step 2: Convert to fraction form
    133,101.45/183,677.09 = 72,669.78/x
  3. Step 3: Cross multiply
    133,101.45x = 183,677.09 × 72,669.78
  4. Step 4: Simplify right side
    133,101.45x = 13,347,773,357.99
  5. Step 5: Solve for x
    x = 13,347,773,357.99/133,101.45
  6. Step 6: Final answer
    x = 100,282.70

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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.