Home / 121,227.91-181,830.41-57,171.18

Finding the Fourth Proportional to 121,227.91, 181,830.41 and 57,171.18

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Solution

The fourth proportional to 121,227.91, 181,830.41 and 57,171.18 is: 85,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,227.91 : 181,830.41 = 57,171.18 : x
  2. Step 2: Convert to fraction form
    121,227.91/181,830.41 = 57,171.18/x
  3. Step 3: Cross multiply
    121,227.91x = 181,830.41 × 57,171.18
  4. Step 4: Simplify right side
    121,227.91x = 10,395,459,709.98
  5. Step 5: Solve for x
    x = 10,395,459,709.98/121,227.91
  6. Step 6: Final answer
    x = 85,751.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.