Home / 144,747.60-217,121.40-66,015.60

Finding the Fourth Proportional to 144,747.60, 217,121.40 and 66,015.60

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Solution

The fourth proportional to 144,747.60, 217,121.40 and 66,015.60 is: 99,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,747.60 : 217,121.40 = 66,015.60 : x
  2. Step 2: Convert to fraction form
    144,747.60/217,121.40 = 66,015.60/x
  3. Step 3: Cross multiply
    144,747.60x = 217,121.40 × 66,015.60
  4. Step 4: Simplify right side
    144,747.60x = 14,333,399,493.84
  5. Step 5: Solve for x
    x = 14,333,399,493.84/144,747.60
  6. Step 6: Final answer
    x = 99,023.40

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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.