Home / 132,819.71-183,278.36-76,220.15

Finding the Fourth Proportional to 132,819.71, 183,278.36 and 76,220.15

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Solution

The fourth proportional to 132,819.71, 183,278.36 and 76,220.15 is: 105,176.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,819.71 : 183,278.36 = 76,220.15 : x
  2. Step 2: Convert to fraction form
    132,819.71/183,278.36 = 76,220.15/x
  3. Step 3: Cross multiply
    132,819.71x = 183,278.36 × 76,220.15
  4. Step 4: Simplify right side
    132,819.71x = 13,969,502,793.46
  5. Step 5: Solve for x
    x = 13,969,502,793.46/132,819.71
  6. Step 6: Final answer
    x = 105,176.43

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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.