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Finding the Fourth Proportional to 185,556.84, 255,910.50 and 129,103.08

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Solution

The fourth proportional to 185,556.84, 255,910.50 and 129,103.08 is: 178,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,556.84 : 255,910.50 = 129,103.08 : x
  2. Step 2: Convert to fraction form
    185,556.84/255,910.50 = 129,103.08/x
  3. Step 3: Cross multiply
    185,556.84x = 255,910.50 × 129,103.08
  4. Step 4: Simplify right side
    185,556.84x = 33,038,833,754.34
  5. Step 5: Solve for x
    x = 33,038,833,754.34/185,556.84
  6. Step 6: Final answer
    x = 178,052.36

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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.