Home / 103,686.05-155,490.19-44,491.25

Finding the Fourth Proportional to 103,686.05, 155,490.19 and 44,491.25

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Solution

The fourth proportional to 103,686.05, 155,490.19 and 44,491.25 is: 66,720.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686.05 : 155,490.19 = 44,491.25 : x
  2. Step 2: Convert to fraction form
    103,686.05/155,490.19 = 44,491.25/x
  3. Step 3: Cross multiply
    103,686.05x = 155,490.19 × 44,491.25
  4. Step 4: Simplify right side
    103,686.05x = 6,917,952,915.84
  5. Step 5: Solve for x
    x = 6,917,952,915.84/103,686.05
  6. Step 6: Final answer
    x = 66,720.19

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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.