Home / 151,144.08-208,556.82-90,701.88

Finding the Fourth Proportional to 151,144.08, 208,556.82 and 90,701.88

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Solution

The fourth proportional to 151,144.08, 208,556.82 and 90,701.88 is: 125,155.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,144.08 : 208,556.82 = 90,701.88 : x
  2. Step 2: Convert to fraction form
    151,144.08/208,556.82 = 90,701.88/x
  3. Step 3: Cross multiply
    151,144.08x = 208,556.82 × 90,701.88
  4. Step 4: Simplify right side
    151,144.08x = 18,916,495,660.82
  5. Step 5: Solve for x
    x = 18,916,495,660.82/151,144.08
  6. Step 6: Final answer
    x = 125,155.39

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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.