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Finding the Fourth Proportional to 153,826.80, 230,610.60 and 79,954.80

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Solution

The fourth proportional to 153,826.80, 230,610.60 and 79,954.80 is: 119,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,826.80 : 230,610.60 = 79,954.80 : x
  2. Step 2: Convert to fraction form
    153,826.80/230,610.60 = 79,954.80/x
  3. Step 3: Cross multiply
    153,826.80x = 230,610.60 × 79,954.80
  4. Step 4: Simplify right side
    153,826.80x = 18,438,424,400.88
  5. Step 5: Solve for x
    x = 18,438,424,400.88/153,826.80
  6. Step 6: Final answer
    x = 119,864.84

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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.