Home / 108,660.45-150,000.51-68,433.31

Finding the Fourth Proportional to 108,660.45, 150,000.51 and 68,433.31

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Solution

The fourth proportional to 108,660.45, 150,000.51 and 68,433.31 is: 94,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,660.45 : 150,000.51 = 68,433.31 : x
  2. Step 2: Convert to fraction form
    108,660.45/150,000.51 = 68,433.31/x
  3. Step 3: Cross multiply
    108,660.45x = 150,000.51 × 68,433.31
  4. Step 4: Simplify right side
    108,660.45x = 10,265,031,400.99
  5. Step 5: Solve for x
    x = 10,265,031,400.99/108,660.45
  6. Step 6: Final answer
    x = 94,468.88

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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.