Home / 104,427.40-156,641.10-72,934.60

Finding the Fourth Proportional to 104,427.40, 156,641.10 and 72,934.60

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Solution

The fourth proportional to 104,427.40, 156,641.10 and 72,934.60 is: 109,401.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,427.40 : 156,641.10 = 72,934.60 : x
  2. Step 2: Convert to fraction form
    104,427.40/156,641.10 = 72,934.60/x
  3. Step 3: Cross multiply
    104,427.40x = 156,641.10 × 72,934.60
  4. Step 4: Simplify right side
    104,427.40x = 11,424,555,972.06
  5. Step 5: Solve for x
    x = 11,424,555,972.06/104,427.40
  6. Step 6: Final answer
    x = 109,401.90

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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.