Home / 103,626.60-155,448.68-28,746.74

Finding the Fourth Proportional to 103,626.60, 155,448.68 and 28,746.74

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Solution

The fourth proportional to 103,626.60, 155,448.68 and 28,746.74 is: 43,122.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,626.60 : 155,448.68 = 28,746.74 : x
  2. Step 2: Convert to fraction form
    103,626.60/155,448.68 = 28,746.74/x
  3. Step 3: Cross multiply
    103,626.60x = 155,448.68 × 28,746.74
  4. Step 4: Simplify right side
    103,626.60x = 4,468,642,787.30
  5. Step 5: Solve for x
    x = 4,468,642,787.30/103,626.60
  6. Step 6: Final answer
    x = 43,122.55

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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.