Home / 137,198.10-189,362.79-83,500.41

Finding the Fourth Proportional to 137,198.10, 189,362.79 and 83,500.41

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Solution

The fourth proportional to 137,198.10, 189,362.79 and 83,500.41 is: 115,248.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,198.10 : 189,362.79 = 83,500.41 : x
  2. Step 2: Convert to fraction form
    137,198.10/189,362.79 = 83,500.41/x
  3. Step 3: Cross multiply
    137,198.10x = 189,362.79 × 83,500.41
  4. Step 4: Simplify right side
    137,198.10x = 15,811,870,603.74
  5. Step 5: Solve for x
    x = 15,811,870,603.74/137,198.10
  6. Step 6: Final answer
    x = 115,248.47

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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.