Home / 137,516.98-189,770.01-76,262.81

Finding the Fourth Proportional to 137,516.98, 189,770.01 and 76,262.81

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Solution

The fourth proportional to 137,516.98, 189,770.01 and 76,262.81 is: 105,240.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,516.98 : 189,770.01 = 76,262.81 : x
  2. Step 2: Convert to fraction form
    137,516.98/189,770.01 = 76,262.81/x
  3. Step 3: Cross multiply
    137,516.98x = 189,770.01 × 76,262.81
  4. Step 4: Simplify right side
    137,516.98x = 14,472,394,216.33
  5. Step 5: Solve for x
    x = 14,472,394,216.33/137,516.98
  6. Step 6: Final answer
    x = 105,240.78

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1.5x scale

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.