Home / 104,331.97-156,405.61-45,135.35

Finding the Fourth Proportional to 104,331.97, 156,405.61 and 45,135.35

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Solution

The fourth proportional to 104,331.97, 156,405.61 and 45,135.35 is: 67,663.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,331.97 : 156,405.61 = 45,135.35 : x
  2. Step 2: Convert to fraction form
    104,331.97/156,405.61 = 45,135.35/x
  3. Step 3: Cross multiply
    104,331.97x = 156,405.61 × 45,135.35
  4. Step 4: Simplify right side
    104,331.97x = 7,059,421,949.31
  5. Step 5: Solve for x
    x = 7,059,421,949.31/104,331.97
  6. Step 6: Final answer
    x = 67,663.08

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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.