Home / 190,321.92-262,627.20-105,416.64

Finding the Fourth Proportional to 190,321.92, 262,627.20 and 105,416.64

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Solution

The fourth proportional to 190,321.92, 262,627.20 and 105,416.64 is: 145,465.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,321.92 : 262,627.20 = 105,416.64 : x
  2. Step 2: Convert to fraction form
    190,321.92/262,627.20 = 105,416.64/x
  3. Step 3: Cross multiply
    190,321.92x = 262,627.20 × 105,416.64
  4. Step 4: Simplify right side
    190,321.92x = 27,685,276,996.61
  5. Step 5: Solve for x
    x = 27,685,276,996.61/190,321.92
  6. Step 6: Final answer
    x = 145,465.52

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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.