Home / 121,217.83-181,855.36-38,111.83

Finding the Fourth Proportional to 121,217.83, 181,855.36 and 38,111.83

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Solution

The fourth proportional to 121,217.83, 181,855.36 and 38,111.83 is: 57,176.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,217.83 : 181,855.36 = 38,111.83 : x
  2. Step 2: Convert to fraction form
    121,217.83/181,855.36 = 38,111.83/x
  3. Step 3: Cross multiply
    121,217.83x = 181,855.36 × 38,111.83
  4. Step 4: Simplify right side
    121,217.83x = 6,930,840,564.91
  5. Step 5: Solve for x
    x = 6,930,840,564.91/121,217.83
  6. Step 6: Final answer
    x = 57,176.74

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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.