Home / 261,004.08-391,564.44-83,521.74

Finding the Fourth Proportional to 261,004.08, 391,564.44 and 83,521.74

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Solution

The fourth proportional to 261,004.08, 391,564.44 and 83,521.74 is: 125,301.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,004.08 : 391,564.44 = 83,521.74 : x
  2. Step 2: Convert to fraction form
    261,004.08/391,564.44 = 83,521.74/x
  3. Step 3: Cross multiply
    261,004.08x = 391,564.44 × 83,521.74
  4. Step 4: Simplify right side
    261,004.08x = 32,704,143,350.93
  5. Step 5: Solve for x
    x = 32,704,143,350.93/261,004.08
  6. Step 6: Final answer
    x = 125,301.27

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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.