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Finding the Fourth Proportional to 144,078.84, 216,120.42 and 65,195.64

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Solution

The fourth proportional to 144,078.84, 216,120.42 and 65,195.64 is: 97,794.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,078.84 : 216,120.42 = 65,195.64 : x
  2. Step 2: Convert to fraction form
    144,078.84/216,120.42 = 65,195.64/x
  3. Step 3: Cross multiply
    144,078.84x = 216,120.42 × 65,195.64
  4. Step 4: Simplify right side
    144,078.84x = 14,090,109,098.97
  5. Step 5: Solve for x
    x = 14,090,109,098.97/144,078.84
  6. Step 6: Final answer
    x = 97,794.44

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1.5x scale

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.