Home / 82,231.64-122,752.44-72,267.38

Finding the Fourth Proportional to 82,231.64, 122,752.44 and 72,267.38

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Solution

The fourth proportional to 82,231.64, 122,752.44 and 72,267.38 is: 107,878.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,231.64 : 122,752.44 = 72,267.38 : x
  2. Step 2: Convert to fraction form
    82,231.64/122,752.44 = 72,267.38/x
  3. Step 3: Cross multiply
    82,231.64x = 122,752.44 × 72,267.38
  4. Step 4: Simplify right side
    82,231.64x = 8,870,996,866.07
  5. Step 5: Solve for x
    x = 8,870,996,866.07/82,231.64
  6. Step 6: Final answer
    x = 107,878.15

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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.