Home / 96,405.90-144,638.39-43,142.70

Finding the Fourth Proportional to 96,405.90, 144,638.39 and 43,142.70

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Solution

The fourth proportional to 96,405.90, 144,638.39 and 43,142.70 is: 64,727.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,405.90 : 144,638.39 = 43,142.70 : x
  2. Step 2: Convert to fraction form
    96,405.90/144,638.39 = 43,142.70/x
  3. Step 3: Cross multiply
    96,405.90x = 144,638.39 × 43,142.70
  4. Step 4: Simplify right side
    96,405.90x = 6,240,090,668.25
  5. Step 5: Solve for x
    x = 6,240,090,668.25/96,405.90
  6. Step 6: Final answer
    x = 64,727.27

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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.