Home / 82,228.14-122,747.22-72,263.88

Finding the Fourth Proportional to 82,228.14, 122,747.22 and 72,263.88

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Solution

The fourth proportional to 82,228.14, 122,747.22 and 72,263.88 is: 107,872.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,228.14 : 122,747.22 = 72,263.88 : x
  2. Step 2: Convert to fraction form
    82,228.14/122,747.22 = 72,263.88/x
  3. Step 3: Cross multiply
    82,228.14x = 122,747.22 × 72,263.88
  4. Step 4: Simplify right side
    82,228.14x = 8,870,190,376.41
  5. Step 5: Solve for x
    x = 8,870,190,376.41/82,228.14
  6. Step 6: Final answer
    x = 107,872.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.