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Finding the Fourth Proportional to 151,556.63, 209,165.91 and 91,157.63

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Solution

The fourth proportional to 151,556.63, 209,165.91 and 91,157.63 is: 125,808.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,556.63 : 209,165.91 = 91,157.63 : x
  2. Step 2: Convert to fraction form
    151,556.63/209,165.91 = 91,157.63/x
  3. Step 3: Cross multiply
    151,556.63x = 209,165.91 × 91,157.63
  4. Step 4: Simplify right side
    151,556.63x = 19,067,068,632.39
  5. Step 5: Solve for x
    x = 19,067,068,632.39/151,556.63
  6. Step 6: Final answer
    x = 125,808.21

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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.