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Finding the Fourth Proportional to 181,806.60, 272,709.90 and 125,819.40

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Solution

The fourth proportional to 181,806.60, 272,709.90 and 125,819.40 is: 188,729.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,806.60 : 272,709.90 = 125,819.40 : x
  2. Step 2: Convert to fraction form
    181,806.60/272,709.90 = 125,819.40/x
  3. Step 3: Cross multiply
    181,806.60x = 272,709.90 × 125,819.40
  4. Step 4: Simplify right side
    181,806.60x = 34,312,195,992.06
  5. Step 5: Solve for x
    x = 34,312,195,992.06/181,806.60
  6. Step 6: Final answer
    x = 188,729.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.