Home / 188,138.08-259,630.56-112,730.24

Finding the Fourth Proportional to 188,138.08, 259,630.56 and 112,730.24

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Solution

The fourth proportional to 188,138.08, 259,630.56 and 112,730.24 is: 155,567.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,138.08 : 259,630.56 = 112,730.24 : x
  2. Step 2: Convert to fraction form
    188,138.08/259,630.56 = 112,730.24/x
  3. Step 3: Cross multiply
    188,138.08x = 259,630.56 × 112,730.24
  4. Step 4: Simplify right side
    188,138.08x = 29,268,215,340.13
  5. Step 5: Solve for x
    x = 29,268,215,340.13/188,138.08
  6. Step 6: Final answer
    x = 155,567.74

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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.