Home / 112,296.60-155,019.96-74,078.88

Finding the Fourth Proportional to 112,296.60, 155,019.96 and 74,078.88

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Solution

The fourth proportional to 112,296.60, 155,019.96 and 74,078.88 is: 102,262.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,296.60 : 155,019.96 = 74,078.88 : x
  2. Step 2: Convert to fraction form
    112,296.60/155,019.96 = 74,078.88/x
  3. Step 3: Cross multiply
    112,296.60x = 155,019.96 × 74,078.88
  4. Step 4: Simplify right side
    112,296.60x = 11,483,705,014.44
  5. Step 5: Solve for x
    x = 11,483,705,014.44/112,296.60
  6. Step 6: Final answer
    x = 102,262.27

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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.