Home / 261,260.22-391,834.56-83,719.56

Finding the Fourth Proportional to 261,260.22, 391,834.56 and 83,719.56

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Solution

The fourth proportional to 261,260.22, 391,834.56 and 83,719.56 is: 125,561.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,260.22 : 391,834.56 = 83,719.56 : x
  2. Step 2: Convert to fraction form
    261,260.22/391,834.56 = 83,719.56/x
  3. Step 3: Cross multiply
    261,260.22x = 391,834.56 × 83,719.56
  4. Step 4: Simplify right side
    261,260.22x = 32,804,216,955.99
  5. Step 5: Solve for x
    x = 32,804,216,955.99/261,260.22
  6. Step 6: Final answer
    x = 125,561.47

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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.