Home / 126,126.44-189,209.10-43,001

Finding the Fourth Proportional to 126,126.44, 189,209.10 and 43,001

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Solution

The fourth proportional to 126,126.44, 189,209.10 and 43,001 is: 64,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,126.44 : 189,209.10 = 43,001 : x
  2. Step 2: Convert to fraction form
    126,126.44/189,209.10 = 43,001/x
  3. Step 3: Cross multiply
    126,126.44x = 189,209.10 × 43,001
  4. Step 4: Simplify right side
    126,126.44x = 8,136,180,509.10
  5. Step 5: Solve for x
    x = 8,136,180,509.10/126,126.44
  6. Step 6: Final answer
    x = 64,508.13

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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.