Home / 103,486.12-155,230.14-41,172.52

Finding the Fourth Proportional to 103,486.12, 155,230.14 and 41,172.52

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Solution

The fourth proportional to 103,486.12, 155,230.14 and 41,172.52 is: 61,759.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,486.12 : 155,230.14 = 41,172.52 : x
  2. Step 2: Convert to fraction form
    103,486.12/155,230.14 = 41,172.52/x
  3. Step 3: Cross multiply
    103,486.12x = 155,230.14 × 41,172.52
  4. Step 4: Simplify right side
    103,486.12x = 6,391,216,043.75
  5. Step 5: Solve for x
    x = 6,391,216,043.75/103,486.12
  6. Step 6: Final answer
    x = 61,759.16

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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.