Home / 103,439.40-155,159.10-41,109.90

Finding the Fourth Proportional to 103,439.40, 155,159.10 and 41,109.90

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Solution

The fourth proportional to 103,439.40, 155,159.10 and 41,109.90 is: 61,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,439.40 : 155,159.10 = 41,109.90 : x
  2. Step 2: Convert to fraction form
    103,439.40/155,159.10 = 41,109.90/x
  3. Step 3: Cross multiply
    103,439.40x = 155,159.10 × 41,109.90
  4. Step 4: Simplify right side
    103,439.40x = 6,378,575,085.09
  5. Step 5: Solve for x
    x = 6,378,575,085.09/103,439.40
  6. Step 6: Final answer
    x = 61,664.85

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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.