Home / 137,603.14-189,902.73-76,360.92

Finding the Fourth Proportional to 137,603.14, 189,902.73 and 76,360.92

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Solution

The fourth proportional to 137,603.14, 189,902.73 and 76,360.92 is: 105,383.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,603.14 : 189,902.73 = 76,360.92 : x
  2. Step 2: Convert to fraction form
    137,603.14/189,902.73 = 76,360.92/x
  3. Step 3: Cross multiply
    137,603.14x = 189,902.73 × 76,360.92
  4. Step 4: Simplify right side
    137,603.14x = 14,501,146,747.53
  5. Step 5: Solve for x
    x = 14,501,146,747.53/137,603.14
  6. Step 6: Final answer
    x = 105,383.84

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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.