Home / 132,819.95-183,286.17-72,389.30

Finding the Fourth Proportional to 132,819.95, 183,286.17 and 72,389.30

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Solution

The fourth proportional to 132,819.95, 183,286.17 and 72,389.30 is: 99,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,819.95 : 183,286.17 = 72,389.30 : x
  2. Step 2: Convert to fraction form
    132,819.95/183,286.17 = 72,389.30/x
  3. Step 3: Cross multiply
    132,819.95x = 183,286.17 × 72,389.30
  4. Step 4: Simplify right side
    132,819.95x = 13,267,956,425.96
  5. Step 5: Solve for x
    x = 13,267,956,425.96/132,819.95
  6. Step 6: Final answer
    x = 99,894.30

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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.