Home / 137,205.09-189,336.83-75,953.57

Finding the Fourth Proportional to 137,205.09, 189,336.83 and 75,953.57

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Solution

The fourth proportional to 137,205.09, 189,336.83 and 75,953.57 is: 104,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,205.09 : 189,336.83 = 75,953.57 : x
  2. Step 2: Convert to fraction form
    137,205.09/189,336.83 = 75,953.57/x
  3. Step 3: Cross multiply
    137,205.09x = 189,336.83 × 75,953.57
  4. Step 4: Simplify right side
    137,205.09x = 14,380,806,844.53
  5. Step 5: Solve for x
    x = 14,380,806,844.53/137,205.09
  6. Step 6: Final answer
    x = 104,812.49

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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.