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Finding the Fourth Proportional to 183,750.30, 275,625.45 and 78,579.90

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Solution

The fourth proportional to 183,750.30, 275,625.45 and 78,579.90 is: 117,869.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,750.30 : 275,625.45 = 78,579.90 : x
  2. Step 2: Convert to fraction form
    183,750.30/275,625.45 = 78,579.90/x
  3. Step 3: Cross multiply
    183,750.30x = 275,625.45 × 78,579.90
  4. Step 4: Simplify right side
    183,750.30x = 21,658,620,298.46
  5. Step 5: Solve for x
    x = 21,658,620,298.46/183,750.30
  6. Step 6: Final answer
    x = 117,869.85

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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.