Home / 112,415.60-168,623.40-107,231.60

Finding the Fourth Proportional to 112,415.60, 168,623.40 and 107,231.60

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Solution

The fourth proportional to 112,415.60, 168,623.40 and 107,231.60 is: 160,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.60 : 168,623.40 = 107,231.60 : x
  2. Step 2: Convert to fraction form
    112,415.60/168,623.40 = 107,231.60/x
  3. Step 3: Cross multiply
    112,415.60x = 168,623.40 × 107,231.60
  4. Step 4: Simplify right side
    112,415.60x = 18,081,756,979.44
  5. Step 5: Solve for x
    x = 18,081,756,979.44/112,415.60
  6. Step 6: Final answer
    x = 160,847.40

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1.5x scale

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.