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Finding the Fourth Proportional to 183,423.60, 275,135.40 and 72,615.60

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Solution

The fourth proportional to 183,423.60, 275,135.40 and 72,615.60 is: 108,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,423.60 : 275,135.40 = 72,615.60 : x
  2. Step 2: Convert to fraction form
    183,423.60/275,135.40 = 72,615.60/x
  3. Step 3: Cross multiply
    183,423.60x = 275,135.40 × 72,615.60
  4. Step 4: Simplify right side
    183,423.60x = 19,979,122,152.24
  5. Step 5: Solve for x
    x = 19,979,122,152.24/183,423.60
  6. Step 6: Final answer
    x = 108,923.40

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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.