Home / 132,730.80-183,155.22-81,735.36

Finding the Fourth Proportional to 132,730.80, 183,155.22 and 81,735.36

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Solution

The fourth proportional to 132,730.80, 183,155.22 and 81,735.36 is: 112,786.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,730.80 : 183,155.22 = 81,735.36 : x
  2. Step 2: Convert to fraction form
    132,730.80/183,155.22 = 81,735.36/x
  3. Step 3: Cross multiply
    132,730.80x = 183,155.22 × 81,735.36
  4. Step 4: Simplify right side
    132,730.80x = 14,970,257,842.58
  5. Step 5: Solve for x
    x = 14,970,257,842.58/132,730.80
  6. Step 6: Final answer
    x = 112,786.62

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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.