Home / 144,540.60-216,638.10-74,383.80

Finding the Fourth Proportional to 144,540.60, 216,638.10 and 74,383.80

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Solution

The fourth proportional to 144,540.60, 216,638.10 and 74,383.80 is: 111,486.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,540.60 : 216,638.10 = 74,383.80 : x
  2. Step 2: Convert to fraction form
    144,540.60/216,638.10 = 74,383.80/x
  3. Step 3: Cross multiply
    144,540.60x = 216,638.10 × 74,383.80
  4. Step 4: Simplify right side
    144,540.60x = 16,114,365,102.78
  5. Step 5: Solve for x
    x = 16,114,365,102.78/144,540.60
  6. Step 6: Final answer
    x = 111,486.77

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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.