Home / 132,786.88-183,243.36-72,356.80

Finding the Fourth Proportional to 132,786.88, 183,243.36 and 72,356.80

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Solution

The fourth proportional to 132,786.88, 183,243.36 and 72,356.80 is: 99,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,786.88 : 183,243.36 = 72,356.80 : x
  2. Step 2: Convert to fraction form
    132,786.88/183,243.36 = 72,356.80/x
  3. Step 3: Cross multiply
    132,786.88x = 183,243.36 × 72,356.80
  4. Step 4: Simplify right side
    132,786.88x = 13,258,903,150.85
  5. Step 5: Solve for x
    x = 13,258,903,150.85/132,786.88
  6. Step 6: Final answer
    x = 99,851.00

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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.