Home / 261,040.59-391,450.16-92,603.31

Finding the Fourth Proportional to 261,040.59, 391,450.16 and 92,603.31

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Solution

The fourth proportional to 261,040.59, 391,450.16 and 92,603.31 is: 138,865.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,040.59 : 391,450.16 = 92,603.31 : x
  2. Step 2: Convert to fraction form
    261,040.59/391,450.16 = 92,603.31/x
  3. Step 3: Cross multiply
    261,040.59x = 391,450.16 × 92,603.31
  4. Step 4: Simplify right side
    261,040.59x = 36,249,580,516.03
  5. Step 5: Solve for x
    x = 36,249,580,516.03/261,040.59
  6. Step 6: Final answer
    x = 138,865.69

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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.