Home / 156,365.80-234,615.12-77,481.52

Finding the Fourth Proportional to 156,365.80, 234,615.12 and 77,481.52

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Solution

The fourth proportional to 156,365.80, 234,615.12 and 77,481.52 is: 116,255.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,365.80 : 234,615.12 = 77,481.52 : x
  2. Step 2: Convert to fraction form
    156,365.80/234,615.12 = 77,481.52/x
  3. Step 3: Cross multiply
    156,365.80x = 234,615.12 × 77,481.52
  4. Step 4: Simplify right side
    156,365.80x = 18,178,336,112.58
  5. Step 5: Solve for x
    x = 18,178,336,112.58/156,365.80
  6. Step 6: Final answer
    x = 116,255.19

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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.