Home / 103,639.10-155,491.45-37,077.75

Finding the Fourth Proportional to 103,639.10, 155,491.45 and 37,077.75

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Solution

The fourth proportional to 103,639.10, 155,491.45 and 37,077.75 is: 55,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.10 : 155,491.45 = 37,077.75 : x
  2. Step 2: Convert to fraction form
    103,639.10/155,491.45 = 37,077.75/x
  3. Step 3: Cross multiply
    103,639.10x = 155,491.45 × 37,077.75
  4. Step 4: Simplify right side
    103,639.10x = 5,765,273,017.54
  5. Step 5: Solve for x
    x = 5,765,273,017.54/103,639.10
  6. Step 6: Final answer
    x = 55,628.36

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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.