Home / 132,828.60-183,301.20-72,399.78

Finding the Fourth Proportional to 132,828.60, 183,301.20 and 72,399.78

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Solution

The fourth proportional to 132,828.60, 183,301.20 and 72,399.78 is: 99,910.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,828.60 : 183,301.20 = 72,399.78 : x
  2. Step 2: Convert to fraction form
    132,828.60/183,301.20 = 72,399.78/x
  3. Step 3: Cross multiply
    132,828.60x = 183,301.20 × 72,399.78
  4. Step 4: Simplify right side
    132,828.60x = 13,270,966,553.74
  5. Step 5: Solve for x
    x = 13,270,966,553.74/132,828.60
  6. Step 6: Final answer
    x = 99,910.46

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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.