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Finding the Fourth Proportional to 183,480.60, 275,220.90 and 72,672.60

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Solution

The fourth proportional to 183,480.60, 275,220.90 and 72,672.60 is: 109,008.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,480.60 : 275,220.90 = 72,672.60 : x
  2. Step 2: Convert to fraction form
    183,480.60/275,220.90 = 72,672.60/x
  3. Step 3: Cross multiply
    183,480.60x = 275,220.90 × 72,672.60
  4. Step 4: Simplify right side
    183,480.60x = 20,001,018,377.34
  5. Step 5: Solve for x
    x = 20,001,018,377.34/183,480.60
  6. Step 6: Final answer
    x = 109,008.90

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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.