Home / 126,369.77-189,551-51,471.39

Finding the Fourth Proportional to 126,369.77, 189,551 and 51,471.39

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Solution

The fourth proportional to 126,369.77, 189,551 and 51,471.39 is: 77,205.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,369.77 : 189,551 = 51,471.39 : x
  2. Step 2: Convert to fraction form
    126,369.77/189,551 = 51,471.39/x
  3. Step 3: Cross multiply
    126,369.77x = 189,551 × 51,471.39
  4. Step 4: Simplify right side
    126,369.77x = 9,756,453,445.89
  5. Step 5: Solve for x
    x = 9,756,453,445.89/126,369.77
  6. Step 6: Final answer
    x = 77,205.60

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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.