Home / 156,930.60-235,007.10-100,684.20

Finding the Fourth Proportional to 156,930.60, 235,007.10 and 100,684.20

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Solution

The fourth proportional to 156,930.60, 235,007.10 and 100,684.20 is: 150,776.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,930.60 : 235,007.10 = 100,684.20 : x
  2. Step 2: Convert to fraction form
    156,930.60/235,007.10 = 100,684.20/x
  3. Step 3: Cross multiply
    156,930.60x = 235,007.10 × 100,684.20
  4. Step 4: Simplify right side
    156,930.60x = 23,661,501,857.82
  5. Step 5: Solve for x
    x = 23,661,501,857.82/156,930.60
  6. Step 6: Final answer
    x = 150,776.85

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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.