Home / 190,388.92-262,730.10-105,513.88

Finding the Fourth Proportional to 190,388.92, 262,730.10 and 105,513.88

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Solution

The fourth proportional to 190,388.92, 262,730.10 and 105,513.88 is: 145,605.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,388.92 : 262,730.10 = 105,513.88 : x
  2. Step 2: Convert to fraction form
    190,388.92/262,730.10 = 105,513.88/x
  3. Step 3: Cross multiply
    190,388.92x = 262,730.10 × 105,513.88
  4. Step 4: Simplify right side
    190,388.92x = 27,721,672,243.79
  5. Step 5: Solve for x
    x = 27,721,672,243.79/190,388.92
  6. Step 6: Final answer
    x = 145,605.49

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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.