Home / 118,946.14-164,145.90-65,231.56

Finding the Fourth Proportional to 118,946.14, 164,145.90 and 65,231.56

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Solution

The fourth proportional to 118,946.14, 164,145.90 and 65,231.56 is: 90,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,946.14 : 164,145.90 = 65,231.56 : x
  2. Step 2: Convert to fraction form
    118,946.14/164,145.90 = 65,231.56/x
  3. Step 3: Cross multiply
    118,946.14x = 164,145.90 × 65,231.56
  4. Step 4: Simplify right side
    118,946.14x = 10,707,493,124.60
  5. Step 5: Solve for x
    x = 10,707,493,124.60/118,946.14
  6. Step 6: Final answer
    x = 90,019.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.