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Finding the Fourth Proportional to 133,514.20, 200,271.30 and 128,848.60

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Solution

The fourth proportional to 133,514.20, 200,271.30 and 128,848.60 is: 193,272.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,514.20 : 200,271.30 = 128,848.60 : x
  2. Step 2: Convert to fraction form
    133,514.20/200,271.30 = 128,848.60/x
  3. Step 3: Cross multiply
    133,514.20x = 200,271.30 × 128,848.60
  4. Step 4: Simplify right side
    133,514.20x = 25,804,676,625.18
  5. Step 5: Solve for x
    x = 25,804,676,625.18/133,514.20
  6. Step 6: Final answer
    x = 193,272.90

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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.