Home / 133,105.43-183,684.09-72,675.88

Finding the Fourth Proportional to 133,105.43, 183,684.09 and 72,675.88

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Solution

The fourth proportional to 133,105.43, 183,684.09 and 72,675.88 is: 100,291.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,105.43 : 183,684.09 = 72,675.88 : x
  2. Step 2: Convert to fraction form
    133,105.43/183,684.09 = 72,675.88/x
  3. Step 3: Cross multiply
    133,105.43x = 183,684.09 × 72,675.88
  4. Step 4: Simplify right side
    133,105.43x = 13,349,402,882.75
  5. Step 5: Solve for x
    x = 13,349,402,882.75/133,105.43
  6. Step 6: Final answer
    x = 100,291.95

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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.