Home / 261,133.16-391,666.38-101,099.61

Finding the Fourth Proportional to 261,133.16, 391,666.38 and 101,099.61

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Solution

The fourth proportional to 261,133.16, 391,666.38 and 101,099.61 is: 151,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,133.16 : 391,666.38 = 101,099.61 : x
  2. Step 2: Convert to fraction form
    261,133.16/391,666.38 = 101,099.61/x
  3. Step 3: Cross multiply
    261,133.16x = 391,666.38 × 101,099.61
  4. Step 4: Simplify right side
    261,133.16x = 39,597,318,173.33
  5. Step 5: Solve for x
    x = 39,597,318,173.33/261,133.16
  6. Step 6: Final answer
    x = 151,636.50

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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.