Home / 137,046.12-189,181.95-83,348.37

Finding the Fourth Proportional to 137,046.12, 189,181.95 and 83,348.37

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Solution

The fourth proportional to 137,046.12, 189,181.95 and 83,348.37 is: 115,056.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,046.12 : 189,181.95 = 83,348.37 : x
  2. Step 2: Convert to fraction form
    137,046.12/189,181.95 = 83,348.37/x
  3. Step 3: Cross multiply
    137,046.12x = 189,181.95 × 83,348.37
  4. Step 4: Simplify right side
    137,046.12x = 15,768,007,165.92
  5. Step 5: Solve for x
    x = 15,768,007,165.92/137,046.12
  6. Step 6: Final answer
    x = 115,056.21

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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.