Home / 104,177.12-156,270-30,305.12

Finding the Fourth Proportional to 104,177.12, 156,270 and 30,305.12

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Solution

The fourth proportional to 104,177.12, 156,270 and 30,305.12 is: 45,458.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,177.12 : 156,270 = 30,305.12 : x
  2. Step 2: Convert to fraction form
    104,177.12/156,270 = 30,305.12/x
  3. Step 3: Cross multiply
    104,177.12x = 156,270 × 30,305.12
  4. Step 4: Simplify right side
    104,177.12x = 4,735,781,102.40
  5. Step 5: Solve for x
    x = 4,735,781,102.40/104,177.12
  6. Step 6: Final answer
    x = 45,458.94

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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.