Home / 137,306.99-189,487.17-76,890.41

Finding the Fourth Proportional to 137,306.99, 189,487.17 and 76,890.41

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Solution

The fourth proportional to 137,306.99, 189,487.17 and 76,890.41 is: 106,110.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,306.99 : 189,487.17 = 76,890.41 : x
  2. Step 2: Convert to fraction form
    137,306.99/189,487.17 = 76,890.41/x
  3. Step 3: Cross multiply
    137,306.99x = 189,487.17 × 76,890.41
  4. Step 4: Simplify right side
    137,306.99x = 14,569,745,243.60
  5. Step 5: Solve for x
    x = 14,569,745,243.60/137,306.99
  6. Step 6: Final answer
    x = 106,110.73

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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.