Home / 132,711.60-183,138.84-76,119.36

Finding the Fourth Proportional to 132,711.60, 183,138.84 and 76,119.36

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Solution

The fourth proportional to 132,711.60, 183,138.84 and 76,119.36 is: 105,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,711.60 : 183,138.84 = 76,119.36 : x
  2. Step 2: Convert to fraction form
    132,711.60/183,138.84 = 76,119.36/x
  3. Step 3: Cross multiply
    132,711.60x = 183,138.84 × 76,119.36
  4. Step 4: Simplify right side
    132,711.60x = 13,940,411,291.94
  5. Step 5: Solve for x
    x = 13,940,411,291.94/132,711.60
  6. Step 6: Final answer
    x = 105,042.90

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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.