Home / 112,660.04-155,290.56-76,350.44

Finding the Fourth Proportional to 112,660.04, 155,290.56 and 76,350.44

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Solution

The fourth proportional to 112,660.04, 155,290.56 and 76,350.44 is: 105,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,660.04 : 155,290.56 = 76,350.44 : x
  2. Step 2: Convert to fraction form
    112,660.04/155,290.56 = 76,350.44/x
  3. Step 3: Cross multiply
    112,660.04x = 155,290.56 × 76,350.44
  4. Step 4: Simplify right side
    112,660.04x = 11,856,502,583.85
  5. Step 5: Solve for x
    x = 11,856,502,583.85/112,660.04
  6. Step 6: Final answer
    x = 105,241.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.